Update README.md

Author: imharshtiwari

README.md

@@ -26,7 +26,7 @@ Practice regularly to improve your problem-solving skills.
 If you want to contribute to this repository, you can do so by:
 
 🤝 Forking the repository and submitting a pull request with your solution to a problem.
-Creating an issue with a new problem and its solution.
+Creating an issue with a new problem and its solution..
 Providing feedback on existing solutions.