Add usage instructions

README.md

@@ -1 +1,25 @@
-# 46snihdnat-data
+# 46snihdnat-data
+
+This repo contains zone information for `hamburgmesh.net`. This repo is automatically pulled every 15min, create a pull request to get a subdomain. The proxy is limited to `2001:bf7::/32`, so you need an ipv6 address from this range.
+
+## Get a subdomain
+
+```
+# point an A record to the proxy
+yoursub         A       $SNI
+# point an AAAA record to your server
+yoursub         AAAA    2001:bf7::1
+# point an AAAA record to your server, create an A record to the proxy, all-in-one
+yourothersub    %       2001:bf7::2
+```
+
+## Use your own domain
+
+1. Register a domain
+2. Create an AAAA record pointing to your server
+   (Needs to be located in 2001:bf7::/32)
+3. Create an A record pointing to `46.101.199.212`
+
+## Powered by
+
+[kpcyrd/46snihdnat](https://github.com/kpcyrd/46snihdnat)