Add API documentation for the GLQL REST API endpoint

Robert Huntrequested to merge
add-glql-rest-api-doc into master

What does this MR do and why?

Adds the API documentation for the GLQL REST API endpoint.

The navigation MR is waiting for this to be merged: Draft: Add GLQL REST API nav item (gitlab-org/technical-writing/docs-gitlab-com!1615)

References

Related to #573055 (closed), and relies on Create a new GLQL REST API for Duo integration (!209517 - merged) to be merged.

How to set up and validate locally

MR acceptance checklist

Evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Edited by Robert Hunt

Merge request reports