Move version to single place; Move 'build' to User Guide; Add 'make publish'

README.md

@@ -5,34 +5,9 @@ reconciles a running [VPP](https://fd.io/) daemon with its configuration. It is
 re-entrant and stateless. The tool connects to the VPP API and creates/removes all of the
 configuration in a minimally intrusive way.
 
-***NOTE*** This code is under development, and probably won't work well until this note is removed.
-If you're interested in helping, reach out to <pim at ipng dot ch> to discuss options.
-
-## Building
-
-This program expects Python3 and PIP to be installed. It's known to work on Debian Bullseye and
-Bookworm, as well as on Ubuntu Focal, Jammy and Noble.
-
+You can simply install this package from [[PyPi](https://pypi.org/project/vppcfg/)]:
 ```
-
-## Start a Virtual Environment
-python3 -m venv .venv
-source .venv/bin/activate
-
-## Install python build dependencies 
-$ make install-deps
-
-## Ensure all unittests pass.
-$ make test
-
-## Build vppcfg
-$ make build
-
-## Exit the virtual environment
-$ deactivate
-
-## Install the tool with PIP
-$ make install
+$ pip install [--break-system-packages] vppcfg
 ```
 
 ## Running