[Doc] Basic API endpoints & usage

[samqi]

Problem to solve

1. What project/feature(s) affected?
   Any project with plone rest API turned on.
2. Is there a problem with a specific document, or a feature/process that's not addressed sufficiently in docs?
   It's not clear which are regular practical endpoints to be used.
3. Any other ideas or requests?
   Plone REST API does not document the customised dexterity content types we use.

Further details

1. Content: What audience is it intended for?

• Sinar folks,
• Partners who may need to utilise plone rest api

Proposal

Update into wiki

Who can address the issue

Anyone with knowledge about Plone & REST API

Other links/references

Plone REST API doc page

[samqi]

Very basic barebones API documentation updated into WIki at https://github.com/Sinar/sinarngo/wiki/Plone-REST-API-usage

Wiki details are not specific due to keeping in mind, that different specific sites using these packages may have different contexts so no specifics are added other than generic information for now.