Update Readmd.md file

Author: akashdeep023

README.md

@@ -71,10 +71,15 @@
 ✨ 3. Insertion sort algorithm -> `Basic_Sorting_Algorithms Chapter` \
 ✨ 4. Counting sort algorithm -> `Basic_Sorting_Algorithms Chapter` \
 ✨ 5. Inbuilt sort algorithm -> `Basic_Sorting_Algorithms Chapter` \
-✨ 6. Merge sort algorithm -> `Divide\_&_Conquer Chapter` \
-✨ 7. Quick sort algorithm -> `Divide\_&_Conquer Chapter`
+✨ 6. Merge sort algorithm -> `Divide_&_Conquer Chapter` \
+✨ 7. Quick sort algorithm -> `Divide_&_Conquer Chapter`
 
 **Search Algorithms**
 
 ✨ 1. Linear search algorithm -> `Arrays Chapter` \
 ✨ 2. Binary search algorithm -> `Arrays Chapter`
+
+**Recursion Concept**
+✨ 1. Basic of recursion \
+✨ 2. Divide & Conquer \
+✨ 3. Backtracking