doc: apply new format to git-branch man page

- 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.

Possible values for some variables, that were mentioned in the description
prose, are now made into enumerated list.

Signed-off-by: Jean-Noël Avila <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: jnavila

Documentation/config/branch.adoc

@@ -1,41 +1,42 @@
-branch.autoSetupMerge::
-	Tells 'git branch', 'git switch' and 'git checkout' to set up new branches
+`branch.autoSetupMerge`::
+	Tells `git branch`, `git switch` and `git checkout` to set up new branches
 	so that linkgit:git-pull[1] will appropriately merge from the
 	starting point branch. Note that even if this option is not set,
 	this behavior can be chosen per-branch using the `--track`
-	and `--no-track` options. The valid settings are: `false` -- no
-	automatic setup is done; `true` -- automatic setup is done when the
-	starting point is a remote-tracking branch; `always` --
-	automatic setup is done when the starting point is either a
-	local branch or remote-tracking branch; `inherit` -- if the starting point
-	has a tracking configuration, it is copied to the new
-	branch; `simple` -- automatic setup is done only when the starting point
+	and `--no-track` options.  This option defaults to `true`. The valid settings
+	are:
+`false`;; no automatic setup is done
+`true`;; automatic setup is done when the starting point is a remote-tracking branch
+`always`;; automatic setup is done when the starting point is either a
+	local branch or remote-tracking branch
+`inherit`;; if the starting point has a tracking configuration, it is copied to the new
+	branch
+`simple`;; automatic setup is done only when the starting point
 	is a remote-tracking branch and the new branch has the same name as the
-	remote branch. This option defaults to true.
+	remote branch.
 
-branch.autoSetupRebase::
-	When a new branch is created with 'git branch', 'git switch' or 'git checkout'
+`branch.autoSetupRebase`::
+	When a new branch is created with `git branch`, `git switch` or `git checkout`
 	that tracks another branch, this variable tells Git to set
-	up pull to rebase instead of merge (see "branch.<name>.rebase").
-	When `never`, rebase is never automatically set to true.
-	When `local`, rebase is set to true for tracked branches of
-	other local branches.
-	When `remote`, rebase is set to true for tracked branches of
-	remote-tracking branches.
-	When `always`, rebase will be set to true for all tracking
-	branches.
-	See "branch.autoSetupMerge" for details on how to set up a
-	branch to track another branch.
-	This option defaults to never.
+	up pull to rebase instead of merge (see `branch.<name>.rebase`).
+	The valid settings are:
+`never`;; rebase is never automatically set to true.
+`local`;; rebase is set to true for tracked branches of other local branches.
+`remote`;; rebase is set to true for tracked branches of remote-tracking branches.
+`always`;; rebase will be set to true for all tracking branches.
 
-branch.sort::
++
+See `branch.autoSetupMerge` for details on how to set up a branch to track another branch.
+This option defaults to `never`.
+
+`branch.sort`::
 	This variable controls the sort ordering of branches when displayed by
-	linkgit:git-branch[1]. Without the "--sort=<value>" option provided, the
+	linkgit:git-branch[1]. Without the `--sort=<value>` option provided, the
 	value of this variable will be used as the default.
 	See linkgit:git-for-each-ref[1] field names for valid values.
 
-branch.<name>.remote::
-	When on branch <name>, it tells 'git fetch' and 'git push'
+`branch.<name>.remote`::
+	When on branch _<name>_, it tells `git fetch` and `git push`
 	which remote to fetch from or push to.  The remote to push to
 	may be overridden with `remote.pushDefault` (for all branches).
 	The remote to push to, for the current branch, may be further
@@ -46,58 +47,58 @@ branch.<name>.remote::
 	Additionally, `.` (a period) is the current local repository
 	(a dot-repository), see `branch.<name>.merge`'s final note below.
 
-branch.<name>.pushRemote::
-	When on branch <name>, it overrides `branch.<name>.remote` for
+`branch.<name>.pushRemote`::
+	When on branch _<name>_, it overrides `branch.<name>.remote` for
 	pushing.  It also overrides `remote.pushDefault` for pushing
-	from branch <name>.  When you pull from one place (e.g. your
+	from branch _<name>_.  When you pull from one place (e.g. your
 	upstream) and push to another place (e.g. your own publishing
 	repository), you would want to set `remote.pushDefault` to
 	specify the remote to push to for all branches, and use this
 	option to override it for a specific branch.
 
-branch.<name>.merge::
-	Defines, together with branch.<name>.remote, the upstream branch
-	for the given branch. It tells 'git fetch'/'git pull'/'git rebase' which
-	branch to merge and can also affect 'git push' (see push.default).
-	When in branch <name>, it tells 'git fetch' the default
-	refspec to be marked for merging in FETCH_HEAD. The value is
+`branch.<name>.merge`::
+	Defines, together with `branch.<name>.remote`, the upstream branch
+	for the given branch. It tells `git fetch`/`git pull`/`git rebase` which
+	branch to merge and can also affect `git push` (see `push.default`).
+	When in branch _<name>_, it tells `git fetch` the default
+	refspec to be marked for merging in `FETCH_HEAD`. The value is
 	handled like the remote part of a refspec, and must match a
 	ref which is fetched from the remote given by
-	"branch.<name>.remote".
-	The merge information is used by 'git pull' (which first calls
-	'git fetch') to lookup the default branch for merging. Without
-	this option, 'git pull' defaults to merge the first refspec fetched.
+	`branch.<name>.remote`.
+	The merge information is used by `git pull` (which first calls
+	`git fetch`) to lookup the default branch for merging. Without
+	this option, `git pull` defaults to merge the first refspec fetched.
 	Specify multiple values to get an octopus merge.
-	If you wish to setup 'git pull' so that it merges into <name> from
+	If you wish to setup `git pull` so that it merges into <name> from
 	another branch in the local repository, you can point
 	branch.<name>.merge to the desired branch, and use the relative path
-	setting `.` (a period) for branch.<name>.remote.
+	setting `.` (a period) for `branch.<name>.remote`.
 
-branch.<name>.mergeOptions::
-	Sets default options for merging into branch <name>. The syntax and
+`branch.<name>.mergeOptions`::
+	Sets default options for merging into branch _<name>_. The syntax and
 	supported options are the same as those of linkgit:git-merge[1], but
 	option values containing whitespace characters are currently not
 	supported.
 
-branch.<name>.rebase::
-	When true, rebase the branch <name> on top of the fetched branch,
+`branch.<name>.rebase`::
+	When true, rebase the branch _<name>_ on top of the fetched branch,
 	instead of merging the default branch from the default remote when
-	"git pull" is run. See "pull.rebase" for doing this in a non
+	`git pull` is run. See `pull.rebase` for doing this in a non
 	branch-specific manner.
 +
-When `merges` (or just 'm'), pass the `--rebase-merges` option to 'git rebase'
+When `merges` (or just `m`), pass the `--rebase-merges` option to `git rebase`
 so that the local merge commits are included in the rebase (see
 linkgit:git-rebase[1] for details).
 +
-When the value is `interactive` (or just 'i'), the rebase is run in interactive
+When the value is `interactive` (or just `i`), the rebase is run in interactive
 mode.
 +
 *NOTE*: this is a possibly dangerous operation; do *not* use
 it unless you understand the implications (see linkgit:git-rebase[1]
 for details).
 
-branch.<name>.description::
+`branch.<name>.description`::
 	Branch description, can be edited with
 	`git branch --edit-description`. Branch description is
-	automatically added to the format-patch cover letter or
-	request-pull summary.
+	automatically added to the `format-patch` cover letter or
+	`request-pull` summary.