API: Document default_branch parameter for Projects endpoint
requested to merge markglenfletcher1/gitlab-ce:23272-documentation-for-editing-a-project-s-default-branch-via-the-api-is-missing into master
See the general Documentation guidelines http://docs.gitlab.com/ce/development/doc_styleguide.html.
What does this MR do?
Adds documentation for the missing default_branch parameter when editing a project via the API
because
Documentation for editing a project's default branch via the API is missing
Moving docs to a new location?
Not moving docs