Add warning for SourceHut

replace/github.md

@@ -50,7 +50,9 @@ Collaboration platform forked from [Gogs](#gogs).
 
 ## SourceHut
 
-A software development platform for hackers. The hosted version
+A software development platform for hackers.
+
+Be warned that the user interface may not be familiar to the end-user, as it looks different to GitHub's.
 
 {% infobox %}
   - **Website**: [sr.ht](https://sr.ht/)