Update README.md

Author: jovial

README.md

@@ -4,6 +4,17 @@ Runs [tang](https://github.com/latchset/tang) inside a Rocky Linux docker contai
 
 ## Usage
 
+It is recommended to use the latest versioned release e.g v1.0.0. To avoid needing to update the README
+each time, the documentation will use the `latest` tag.
+
+Simplest example:
+
+```
+docker run -d -p 8080:80 -v tang-db:/var/db/tang ghcr.io/stackhpc/tang:latest
+```
+
+Using host networking with a custom port:
+
 ```
-docker run -d -p 8080:80 -v tang-db:/var/db/tang stackhpc/tang
+docker run -e TANG_LISTEN_PORT=1234 -d --network host -v tang-db:/var/db/tang ghcr.io/stackhpc/tang:latest
 ```