[GUACAMOLE-1680] Add missing WEBAPP_CONTEXT variable in docker setup documentation

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 1.0.0, 1.2.0, 1.3.0, 1.4.0
• Fix Version/s: 1.6.0
• Component/s: Documentation
• Labels: documentation
• Assignee: Unassigned
• Reporter: Derek Povah
• Created: 06/Sep/22 23:14
• Updated: 13/Sep/22 21:21
• Resolved: 13/Sep/22 21:21

Description

Had to dig through the repo to find that the `WEBAPP_CONTEXT` variable is available.

See also: GUACAMOLE-146, GUACAMOLE-1406