Add admonitions marking community-provided docs

docs/dns-records.md

@@ -1,5 +1,12 @@
 # Setting custom DNS records
 
+!!! warning "Community documentation"
+
+    This page is not actively maintained by the headscale authors and is
+    written by community members. It is _not_ verified by `headscale` developers.
+
+    **It might be outdated and it might miss necessary steps**.
+
 ## Goal
 
 This documentation has the goal of showing how a user can set custom DNS records with `headscale`s magic dns.

docs/reverse-proxy.md

@@ -1,5 +1,12 @@
 # Running headscale behind a reverse proxy
 
+!!! warning "Community documentation"
+
+    This page is not actively maintained by the headscale authors and is
+    written by community members. It is _not_ verified by `headscale` developers.
+
+    **It might be outdated and it might miss necessary steps**.
+
 Running headscale behind a reverse proxy is useful when running multiple applications on the same server, and you want to reuse the same external IP and port - usually tcp/443 for HTTPS.
 
 ### WebSockets

docs/running-headscale-container.md

@@ -1,7 +1,11 @@
 # Running headscale in a container
 
-**Note:** the container documentation is maintained by the _community_ and there is no guarentee
-it is up to date, or working.
+!!! warning "Community documentation"
+
+    This page is not actively maintained by the headscale authors and is
+    written by community members. It is _not_ verified by `headscale` developers.
+
+    **It might be outdated and it might miss necessary steps**.
 
 ## Goal
 

docs/running-headscale-openbsd.md

@@ -1,5 +1,12 @@
 # Running headscale on OpenBSD
 
+!!! warning "Community documentation"
+
+    This page is not actively maintained by the headscale authors and is
+    written by community members. It is _not_ verified by `headscale` developers.
+
+    **It might be outdated and it might miss necessary steps**.
+
 ## Goal
 
 This documentation has the goal of showing a user how-to install and run `headscale` on OpenBSD 7.1.