Update readme.md

Voyrox · web-flow · commit f47512588d51 · 2024-03-19T10:20:42.000+11:00
diff --git a/readme.md b/readme.md
@@ -76,7 +76,7 @@ Embrace the Haskell way with HaskMate!
      ```
    - If the installation was successful, it will display the version number of Haskmate.
 
-## Contributing
+## Contributing:
 
 We warmly welcome and appreciate contributions from the community. To contribute:
 
