chore: format warning docs

docs/index.md

@@ -30,9 +30,10 @@
 
 # Overview
 
-> :warning: This is a fork of the really nice project from [containrrr](https://github.com/containrrr) called [watchtower](https://github.com/containrrr/watchtower).
-> I am not the original author of this project. I just forked it to make some changes to it and keep it up-to-date as properly as I can. 
-> Contributions, tips and hints are welcome. Just open an issue or a pull request. Please be aware that I am by no means a professional developer. I am just a Platform Engineer.
+!!! note "Watchtower fork"
+    This is a fork of the really nice project from [containrrr](https://github.com/containrrr) called [watchtower](https://github.com/containrrr/watchtower).
+    I am not the original author of this project. I just forked it to make some changes to it and keep it up-to-date as properly as I can. 
+    Contributions, tips and hints are welcome. Just open an issue or a pull request. Please be aware that I am by no means a professional developer. I am just a Platform Engineer.
 
 ## Quick Start