Docs: Two small improvements to offline circ docs

Docs: Two small improvements to offline circ docs

This commit removes a backslash before a hyperlink which is only a
feature of asciidoctor (used by GitHub to prevent auto-formatting a
link), and thus only appears as an extra backslash for us.

This also adds "code" formatting to another permission name.

Signed-off-by: Remington Steed <rjs7@calvin.edu>