Minor Add a comment service documentation page with the following plan:
- Scope and behaviour
- explain we can bind a comment to a document, and answer a post , multi level
- other things to know : how visibility works ? are comments indexed ?
- Give a snippet of code that makes use of the commentserivce java api, also make sure to point to javadoc for seeing all the methods.
- REST API: add the documentation related to the REST API, or, better, a link to a new page under the rest api section that documents the comment endpoint.
- Implementation: provide some implementation details (what document type is a common tpost, where is it stored, how is the link made, etc...
+ Anything that has been recently added.
