Update README.md

Author: joney000

README.md

@@ -50,3 +50,6 @@ Want to contribute in corrections or enhancement? Great!
 Please raise a PR, or drop a mail at developer.jaswant@gmail.com .
 
 ## I also highly recommed to read [Introduction to Algorithms(CLRS book)](https://en.wikipedia.org/wiki/Introduction_to_Algorithms) and same algorithm implementation from other authors, it will give you diverse set of ideas to solve same algorithmic challenges.
+
+You can buy me a coffee if you find the implementation helpful. :)
+https://www.buymeacoffee.com/devjassi