Review ARKs documentation * readme: https://github.com/CDLUC3/arksorg-site * files under the `doc_src` folder: * how to use the `.puml` files such as [component_diagram.puml](https://github.com/CDLUC3/arksorg-site/blob/main/doc_src/component_diagram.puml) * the [operation test file](https://github.com/CDLUC3/arksorg-site/blob/main/doc_src/operation_test.md) Questions: * are they up-to-date * any docs in other places * anything else need to be documented