This is a follow-up to RHCLOUD-23014

• create a new monorepo package in dynamic plugin SDK to collect and process all developer docs (in Markdown format) into static web pages ready for publishing

• write a script for publishing the above developer docs to Surge.sh or similar service

Whenever a new version of plugin SDK package(s) is published to npmjs registry, we should also publish the associated developer docs. Ideally, we would keep docs for older plugin SDK package versions as well.

Main README file should be updated to refer to the published developer docs.