add dev environment instructions

README.md

@@ -1,3 +1,29 @@
 # Tube Archivist Documentation
 
 This is a work in progress, porting the old wiki to a more flexible documentation framework.
+
+
+## Development Environment
+
+To just make simple changes, edit the markdown files within *mkdocs/docs* direclty.
+
+To setup a local development server:
+
+Install mkdocs with pip:
+```
+pip install mkdocs
+```
+
+From the AUR:
+```
+yay -S mkdocs
+```
+
+More details: [User Guide](https://www.mkdocs.org/user-guide/installation/)
+
+Run the server from the *mkdocs* folder with:
+```
+mkdocs serve
+```
+
+And the site - with live reload enabled - should be available on [localhost:8000](http://localhost:8000/).