Update README.md

Updated text BLake-specific.

Author: blakeCS

README.md

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 ![Course Banner](https://i.ibb.co/vsRqH88/Github-Classroom.png)
 
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-People use GitHub to build some of the most advanced technologies in the world. Whether you’re visualizing data or building a new game, there’s a whole community and set of tools on GitHub that can help you do it even better. GitHub Skills’ “Introduction to GitHub” course guides you through everything you need to start contributing in less than an hour.
+People use GitHub to build some of the most advanced technologies in the world. Whether you’re visualizing data or building a new game.
 
 - **Who is this for**: New developers, new GitHub users, and students.
 - **What you'll learn**: We'll introduce repositories, branches, commits, and pull requests.
 - **What you'll build**: We'll make a short Markdown file you can use as your [profile README](https://docs.github.com/account-and-profile/setting-up-and-managing-your-github-profile/customizing-your-profile/managing-your-profile-readme).
-- **Prerequisites**: None. This course is a great introduction for your first day on GitHub.
 - **How long**: This course is four steps long and takes less than one hour to complete.
 
 ## How to start this course
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 <details id=1>
 <summary><h2>Step 1: Create a branch</h2></summary>