Use full word rather than abbreviation for accessibility (ossu#1194)

* Hopefully fix some confusions regarding alt courses

Mention the full word "alternative" instead of the short form "alt" which may cause confusion to non-native speakers. Also change "/" to "," for the two parts of HTC course.

* Fixed the missing "alt"

Author: pulkitkrishna00

README.md

@@ -139,7 +139,7 @@ This course will introduce you to the world of computer science. Students who ha
 
 Courses | Duration | Effort | Prerequisites | Discussion
 :-- | :--: | :--: | :--: | :--:
-[Introduction to Computer Science and Programming using Python](https://ocw.mit.edu/courses/6-0001-introduction-to-computer-science-and-programming-in-python-fall-2016/) ([alt](https://www.edx.org/course/introduction-to-computer-science-and-programming-7)) | 9 weeks | 15 hours/week | [high school algebra](https://www.khanacademy.org/math/algebra-home) | [chat](https://discord.gg/jvchSm9)
+[Introduction to Computer Science and Programming using Python](https://ocw.mit.edu/courses/6-0001-introduction-to-computer-science-and-programming-in-python-fall-2016/) ([alternative](https://www.edx.org/course/introduction-to-computer-science-and-programming-7)) | 9 weeks | 15 hours/week | [high school algebra](https://www.khanacademy.org/math/algebra-home) | [chat](https://discord.gg/jvchSm9)
 
 ## Core CS
 
@@ -162,7 +162,7 @@ All coursework under Core CS is **required**, unless otherwise indicated.
 
 Courses | Duration | Effort | Prerequisites | Discussion
 :-- | :--: | :--: | :--: | :--:
-[Systematic Program Design](https://learning.edx.org/course/course-v1:UBCx+SPD1x+2T2015) [(textbook)](https://htdp.org/2023-8-14/Book/index.html) (alt: [part 1](https://www.edx.org/course/how-to-code-simple-data) / [part 2](https://www.edx.org/course/how-to-code-complex-data)) | 13 weeks | 8-10 hours/week | none | chat: [part 1](https://discord.gg/RfqAmGJ) / [part 2](https://discord.gg/kczJzpm)
+[Systematic Program Design](https://learning.edx.org/course/course-v1:UBCx+SPD1x+2T2015) [(textbook)](https://htdp.org/2023-8-14/Book/index.html) (alternative: [part 1](https://www.edx.org/course/how-to-code-simple-data), [part 2](https://www.edx.org/course/how-to-code-complex-data)) | 13 weeks | 8-10 hours/week | none | chat: [part 1](https://discord.gg/RfqAmGJ) / [part 2](https://discord.gg/kczJzpm)
 [Programming Languages, Part A](https://www.coursera.org/learn/programming-languages) | 5 weeks | 4-8 hours/week | Systematic Program Design ([Hear instructor](https://www.coursera.org/lecture/programming-languages/recommended-background-k1yuh)) | [chat](https://discord.gg/8BkJtXN)
 [Programming Languages, Part B](https://www.coursera.org/learn/programming-languages-part-b) | 3 weeks | 4-8 hours/week | Programming Languages, Part A | [chat](https://discord.gg/EeA7VR9)
 [Programming Languages, Part C](https://www.coursera.org/learn/programming-languages-part-c) | 3 weeks | 4-8 hours/week | Programming Languages, Part B | [chat](https://discord.gg/8EZUVbA)
@@ -183,10 +183,10 @@ Discrete math (Math for CS) is a prerequisite and closely related to the study o
 
 Courses | Duration | Effort | Notes | Prerequisites | Discussion
 :-- | :--: | :--: | :--: | :--: | :--:
-[Calculus 1A: Differentiation](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.1x+2T2019/about) ([alt](https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/index.htm)) | 13 weeks | 6-10 hours/week | The alternate covers this and the following 2 courses | [high school math](FAQ.md#how-can-i-review-the-math-prerequisites) | [chat](https://discord.gg/mPCt45F)
+[Calculus 1A: Differentiation](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.1x+2T2019/about) ([alternative](https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/index.htm)) | 13 weeks | 6-10 hours/week | The alternate covers this and the following 2 courses | [high school math](FAQ.md#how-can-i-review-the-math-prerequisites) | [chat](https://discord.gg/mPCt45F)
 [Calculus 1B: Integration](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.2x+3T2019/about) | 13 weeks | 5-10 hours/week | - | Calculus 1A | [chat](https://discord.gg/sddAsZg)
 [Calculus 1C: Coordinate Systems & Infinite Series](https://openlearninglibrary.mit.edu/courses/course-v1:MITx+18.01.3x+1T2020/about) | 6 weeks | 5-10 hours/week | - | Calculus 1B | [chat](https://discord.gg/FNEcNNq)
-[Mathematics for Computer Science](https://openlearninglibrary.mit.edu/courses/course-v1:OCW+6.042J+2T2019/about) ([alt](https://ocw.mit.edu/courses/6-042j-mathematics-for-computer-science-fall-2010/)) | 13 weeks | 5 hours/week | [2015/2019 solutions](https://github.com/spamegg1/Math-for-CS-solutions) [2010 solutions](https://github.com/frevib/mit-cs-math-6042-fall-2010-problems) [2005 solutions](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-042j-mathematics-for-computer-science-fall-2005/assignments/). | Calculus 1C | [chat](https://discord.gg/EuTzNbF)
+[Mathematics for Computer Science](https://openlearninglibrary.mit.edu/courses/course-v1:OCW+6.042J+2T2019/about) ([alternative](https://ocw.mit.edu/courses/6-042j-mathematics-for-computer-science-fall-2010/)) | 13 weeks | 5 hours/week | [2015/2019 solutions](https://github.com/spamegg1/Math-for-CS-solutions) [2010 solutions](https://github.com/frevib/mit-cs-math-6042-fall-2010-problems) [2005 solutions](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-042j-mathematics-for-computer-science-fall-2005/assignments/). | Calculus 1C | [chat](https://discord.gg/EuTzNbF)
 
 
 ### CS Tools
@@ -223,7 +223,7 @@ Courses | Duration | Effort | Prerequisites | Discussion
 
 Courses | Duration | Effort | Additional Text / Assignments| Prerequisites | Discussion
 :-- | :--: | :--: | :--: | :--: | :--:
-[Build a Modern Computer from First Principles: From Nand to Tetris](https://www.coursera.org/learn/build-a-computer) ([alt](https://www.nand2tetris.org/)) | 6 weeks | 7-13 hours/week | - | C-like programming language | [chat](https://discord.gg/vxB2DRV)
+[Build a Modern Computer from First Principles: From Nand to Tetris](https://www.coursera.org/learn/build-a-computer) ([alternative](https://www.nand2tetris.org/)) | 6 weeks | 7-13 hours/week | - | C-like programming language | [chat](https://discord.gg/vxB2DRV)
 [Build a Modern Computer from First Principles: Nand to Tetris Part II ](https://www.coursera.org/learn/nand2tetris2) | 6 weeks | 12-18 hours/week | - | one of [these programming languages](https://user-images.githubusercontent.com/2046800/35426340-f6ce6358-026a-11e8-8bbb-4e95ac36b1d7.png), From Nand to Tetris Part I | [chat](https://discord.gg/AsUXcPu)
 [Operating Systems: Three Easy Pieces](coursepages/ostep/README.md) | 10-12 weeks | 6-10 hours/week | - | Nand to Tetris Part II | [chat](https://discord.gg/wZNgpep)
 [Computer Networking: a Top-Down Approach](http://gaia.cs.umass.edu/kurose_ross/online_lectures.htm)| 8 weeks | 4–12 hours/week | [Wireshark Labs](http://gaia.cs.umass.edu/kurose_ross/wireshark.php) | algebra, probability, basic CS | [chat](https://discord.gg/MJ9YXyV)
@@ -296,7 +296,7 @@ Courses | Duration | Effort | Prerequisites | Discussion
 [Databases: Relational Databases and SQL](https://www.edx.org/course/databases-5-sql)| 2 weeks | 10 hours/week | core programming | [chat](https://discord.gg/P8SPPyF)
 [Databases: Semistructured Data](https://www.edx.org/course/semistructured-data)| 2 weeks | 10 hours/week | core programming | [chat](https://discord.gg/duCJ3GN)
 [Machine Learning](https://www.coursera.org/specializations/machine-learning-introduction)| 11 weeks | 9 hours/week | Basic coding | [chat](https://discord.gg/NcXHDjy)
-[Computer Graphics](https://www.edx.org/course/computer-graphics-2) ([alt](https://cseweb.ucsd.edu/~viscomp/classes/cse167/wi22/schedule.html))| 6 weeks | 12 hours/week | C++ or Java, linear algebra | [chat](https://discord.gg/68WqMNV)
+[Computer Graphics](https://www.edx.org/course/computer-graphics-2) ([alternative](https://cseweb.ucsd.edu/~viscomp/classes/cse167/wi22/schedule.html))| 6 weeks | 12 hours/week | C++ or Java, linear algebra | [chat](https://discord.gg/68WqMNV)
 [Software Engineering: Introduction](https://www.coursera.org/learn/introduction-to-software-engineering) | 4 weeks | 8-10 hours/week | Core Programming, and a [sizable project](FAQ.md#why-require-experience-with-a-sizable-project-before-the-Software-Engineering-courses) | [chat](https://discord.gg/5Qtcwtz)
 
 ### Core ethics
@@ -337,7 +337,7 @@ Courses | Duration | Effort | Prerequisites
 [Parallel Programming](https://www.coursera.org/learn/scala-parallel-programming)| 4 weeks | 6-8 hours/week | Scala programming
 [Compilers](https://www.edx.org/course/compilers) | 9 weeks | 6-8 hours/week | none
 [Introduction to Haskell](https://www.seas.upenn.edu/~cis194/fall16/)| 14 weeks | - | -
-[Learn Prolog Now!](https://www.let.rug.nl/bos/lpn//lpnpage.php?pageid=online) ([alt](https://github.com/ossu/computer-science/files/6085884/lpn.pdf))*| 12 weeks | - | -
+[Learn Prolog Now!](https://www.let.rug.nl/bos/lpn//lpnpage.php?pageid=online) ([alternative](https://github.com/ossu/computer-science/files/6085884/lpn.pdf))*| 12 weeks | - | -
 [Software Debugging](https://www.udacity.com/course/software-debugging--cs259)| 8 weeks | 6 hours/week | Python, object-oriented programming
 [Software Testing](https://www.udacity.com/course/software-testing--cs258) | 4 weeks | 6 hours/week | Python, programming experience
 
@@ -363,7 +363,7 @@ Courses | Duration | Effort | Prerequisites
 
 Courses | Duration | Effort | Prerequisites | Notes
 :-- | :--: | :--: | :--: | :--:
-[Computation Structures 1: Digital Circuits](https://learning.edx.org/course/course-v1:MITx+6.004.1x_3+3T2016) [alt1](https://ocw.mit.edu/courses/6-004-computation-structures-spring-2017/) [alt2 ](https://ocw.mit.edu/courses/6-004-computation-structures-spring-2009/) | 10 weeks | 6 hours/week | [Nand2Tetris II](https://www.coursera.org/learn/nand2tetris2) | Alternate links contain all 3 courses.
+[Computation Structures 1: Digital Circuits](https://learning.edx.org/course/course-v1:MITx+6.004.1x_3+3T2016) [alternative 1](https://ocw.mit.edu/courses/6-004-computation-structures-spring-2017/) [alternative 2](https://ocw.mit.edu/courses/6-004-computation-structures-spring-2009/) | 10 weeks | 6 hours/week | [Nand2Tetris II](https://www.coursera.org/learn/nand2tetris2) | Alternate links contain all 3 courses.
 [Computation Structures 2: Computer Architecture](https://learning.edx.org/course/course-v1:MITx+6.004.2x+3T2015) | 10 weeks | 6 hours/week | Computation Structures 1 |
 [Computation Structures 3: Computer Organization](https://learning.edx.org/course/course-v1:MITx+6.004.3x_2+1T2017) | 10 weeks | 6 hours/week | Computation Structures 2 |
 
@@ -387,7 +387,7 @@ Courses | Duration | Effort | Prerequisites | Notes
 
 Courses | Duration | Effort | Prerequisites
 :-- | :--: | :--: | :--:
-[Theory of Computation](https://ocw.mit.edu/courses/18-404j-theory-of-computation-fall-2020/) ([alt](http://aduni.org/courses/theory/index.php?view=cw)) | 13 weeks | 10 hours/week | [Mathematics for Computer Science](https://openlearninglibrary.mit.edu/courses/course-v1:OCW+6.042J+2T2019/about), logic, algorithms
+[Theory of Computation](https://ocw.mit.edu/courses/18-404j-theory-of-computation-fall-2020/) ([alternative](http://aduni.org/courses/theory/index.php?view=cw)) | 13 weeks | 10 hours/week | [Mathematics for Computer Science](https://openlearninglibrary.mit.edu/courses/course-v1:OCW+6.042J+2T2019/about), logic, algorithms
 [Computational Geometry](https://www.edx.org/course/computational-geometry) | 16 weeks | 8 hours/week | algorithms, C++
 [Game Theory](https://www.coursera.org/learn/game-theory-1) | 8 weeks | 3 hours/week | mathematical thinking, probability, calculus