docs: troubleshoot direct connection
Description
This MR adds a direct connection troubleshooting section to the extension documentation.
Related Issues
Resolves gitlab-org/editor-extensions/gitlab-lsp#268 (closed)
What CHANGELOG entry will this MR create?
-
fix:
Bug fix fixes - a user-facing issue in production - included in changelog -
feature:
New feature - a user-facing change which adds functionality - included in changelog -
BREAKING CHANGE:
(fix or feature that would cause existing functionality to change) - should bump major version, mentioned in the changelog -
None - other non-user-facing changes