Purpose: document business domain of purchase order. The content of this repo is published as https://karbonfw.github.io/purchaseorderdoc/.
Markdown is a simplified notation for creating documents in web format. Use https://www.markdownguide.org/basic-syntax/ as guidance. Markdown documents should be placed in md files.
Create diagrams in puml format using https://plantuml.com. Put files in diagrams folder. At any time you can embed diagram in your md documents using the following trick:

Just replace the name of the puml file in the URL.