chore: typo on developer guide

Author: zhravan

pages/contributing.mdx

@@ -58,5 +58,5 @@ This project follows a Fork/Feature Branch/Pull Request model. If you're not fam
    ```
 9. **Create a pull request**: Create an draft pull request with the name of the feature.
 10. **Test your changes**: (OPTIONAL, only for big changes)
-*Option 1*: Use the [Deleoper environment](https://docs.postiz.com/installation/development)
+*Option 1*: Use the [Developer environment](https://docs.postiz.com/installation/development)
 11. **Mark ready for review**: Mark your PR ready for review after testing and wait for it to be merged.