Re: [PATCH 2/2] doc: apply new format to git-branch man page

"Jean-Noël Avila via GitGitGadget" [off-list ref] writes:

From: =?UTF-8?q?Jean-No=C3=ABl=20Avila?= <redacted>

- Switch the synopsis to a synopsis block which automatically
  formats placeholders in italics and keywords in monospace
- Use _<placeholder>_ instead of <placeholder> in the description
- Use `backticks` for keywords and more complex option
descriptions. The new rendering engine applies synopsis rules to
these spans.

And the one effective reformatting in this patch that is not covered
by the list is that the possible values for some variables, that
were mentioned in the description prose, are now made into
enumerated list.

Nicely done.