docs: add some more links

README.md

 # PipeWire
 
-PipeWire is a server and user space API to deal with multimedia
-pipelines. This includes:
+[PipeWire](https://pipewire.org) is a server and user space API to
+deal with multimedia pipelines. This includes:
 
   - Making available sources of video (such as from a capture devices or
     application provided streams) and multiplexing this with
@@ -137,6 +137,12 @@ single commands like this to get the server information:
 $ pw-cli info 0
 ```
 
+## Documentation
+
+Find tutorials and design documentation [here](doc/index.md).
+
+The autogenerated API docs are [here](https://docs.pipewire.org).
+
 ## Contributing
 
 PipeWire is Free Software and is developed in the open. It is licensed under

doc/index.md

-# PipeWire
+# PipeWire Documentation
 
 Start with the [overview](overview.md) of PipeWire.