fix(readme): Correct link to developer setup

Signed-off-by: Marcel Müller <[email protected]>

README.md

@@ -59,7 +59,7 @@ Here's a short [video](https://youtu.be/KdTsWIy4eN0) on how it's done.
 4. Then activate it through the apps management. 🎉
 5. To build the docs locally, install mkdocs locally: `apt install mkdocs mkdocs-bootstrap`.
 
-Also see our **[step by step guide](https://nextcloud-talk.readthedocs.io/en/latest/development-setup/)** on how to set up a full development environment.
+Also see our **[step by step guide](https://nextcloud-talk.readthedocs.io/en/latest/developer-setup/)** on how to set up a full development environment.
 
 ### 🏎️ Faster frontend developing with HMR