Docs: correct the xmpp2 host link

ForNeVeR · ForNeVeR · commit afd2517a32ef · 2025-06-15T00:33:02.000+02:00
diff --git a/README.md b/README.md
@@ -20,7 +20,7 @@ issue][issues].
 
 Host specification
 ------------------
-- [xmpp2][hosts.xmpp2]
+- [xmpp2][host.xmpp2]
 
 Documentation
 -------------
