"Alias" REST endpoint documentation is missing in REST API Reference

Issue Summary

Tha "alias" REST point has been introduced in Crowd 2.5.2 by the request CWD-1469.
However, the latest version of REST API Reference is missing this endpoint.

Steps to Reproduce

See REST API Reference.

Expected Results

Documentation and example output are present in REST API Reference

Actual Results

Documentation and example output are missing.

Workaround

Use the example from CWD-1469