Update README.md

Author: rahulkumaran

Competitive Coding/Math/Catalan_Numbers/README.md

@@ -5,16 +5,12 @@ They're similar to Fibonacci (very slightly)
 The 2 different implementations vary only in terms of time taken!<br>
 Basically we can implement in 3 different ways!<br>
 
-(1) Recursively <br>
-(2) Dynamic Programming <br>
-(3) Binomial Coefficient <br><br>
+* Recursively - Exponential time complexity<br>
+* Dynamic Programming - O(n^2)<br>
+* Binomial Coefficient - O(n) <br><br>
 
 Each of the above 3 implementations have a descending order of time complexities from (1) to (3) <br><br>
 
-For (1) the time complexity is exponential<br>
-For (2) the time complexity is O(n^2)<br>
-For (3) the time complexity is O(n)<br><br>
-
 The Binomial implementation has the best time complexity while the Recursive implementation has the worst time complexity<br>
 In this folder we have the Binomial and Recursive implementations of Catalan Numbers.<br><br>