Update README.md

Author: mirahman

README.md

@@ -1,2 +1,37 @@
 # PHP-Data-Structure-and-Algorithms
-I will try to build popular data structures and solve algorithms using PHP. 
+This repository will feature different datastructure and algorithm implementations using PHP. Any feedback, bugs or suggestion will be welcomed. 
+
+Topics I will cover here
+
+1. Linked List
+   - Single Linked list
+   - Circular Linked list
+   - Doubly Linked List
+   - Doubly Linked list using SPL 
+   
+2. Stacks
+   - Stack using Array
+   - Stack using Linked List
+   - Stack using SPL
+   
+3. Queues
+   - Queue using Array
+   - Queue using Linked List
+   - Queue using SPL
+   - Priority Queue
+   - Circular Queue
+   - Double Ended Queue - DeQueue 
+   
+ 4. Trees
+ 
+ 5. Graph
+ 
+ 6. Sorting
+ 
+ 7. Searching
+ 
+ 8. Dynamic Programming
+ 
+ 9. Greedy algorithm
+ 
+ 10.