Update README.md

Author: kelvins

README.md

@@ -546,8 +546,8 @@ In order to achieve greater coverage and encourage more people to contribute to
   </a>
   </td>
   <td> <!-- Python -->
-  <a href="./CONTRIBUTING.md">
-  <img align="center" height="25" src="./logos/github.svg" />
+  <a href="./src/python/travelling_salesman.py">
+  <img align="center" height="25" src="./logos/python.svg" />
   </a>
   </td>
   <td> <!-- Go -->