Prevent dollar signs in shell codeblocks
What does this MR do?
As discussed in https://gitlab.com/gitlab-org/gitlab-ce/issues/64352#note_213359399, we can easily enable this lint test on our docs:
Moving docs to a new location?
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Make sure the old link is not removed and has its contents replaced with a link to the new location. -
Make sure internal links pointing to the document in question are not broken. -
Search and replace any links referring to old docs in GitLab Runner's source code