doc: finalize git-clone documentation conversion to synopsis style

Use backticks where appropriate for command-line options

Reviewed-by: Kristoffer Haugsbakk <kristofferhaugsbakk@fastmail.com>
Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: jnavila

Documentation/git-clone.adoc

@@ -152,7 +152,7 @@ objects from the source repository into a pack in the cloned repository.
 	unknown ones, is server-specific.
 	When multiple `--server-option=<option>` are given, they are all
 	sent to the other side in the order listed on the command line.
-	When no ++--server-option=++__<option>__ is given from the command
+	When no `--server-option=<option>` is given from the command
 	line, the values of configuration variable `remote.<name>.serverOption`
 	are used instead.
 
@@ -206,14 +206,14 @@ objects from the source repository into a pack in the cloned repository.
 	that all these refs are overwritten by a `git remote update` in the
 	target repository.
 
-`-o` _<name>_::
-`--origin` _<name>_::
+`-o <name>`::
+`--origin <name>`::
 	Instead of using the remote name `origin` to keep track of the upstream
 	repository, use _<name>_.  Overrides `clone.defaultRemoteName` from the
 	config.
 
-`-b` _<name>_::
-`--branch` _<name>_::
+`-b <name>`::
+`--branch <name>`::
 	Instead of pointing the newly created `HEAD` to the branch pointed
 	to by the cloned repository's `HEAD`, point to _<name>_ branch
 	instead. In a non-bare repository, this is the branch that will
@@ -230,8 +230,8 @@ objects from the source repository into a pack in the cloned repository.
 	name.
 	This option is incompatible with `--branch` and `--mirror`.
 
-`-u` _<upload-pack>_::
-`--upload-pack` _<upload-pack>_::
+`-u <upload-pack>`::
+`--upload-pack <upload-pack>`::
 	When given, and the repository to clone from is accessed
 	via ssh, this specifies a non-default path for the command
 	run on the other end.
@@ -240,8 +240,8 @@ objects from the source repository into a pack in the cloned repository.
 	Specify the directory from which templates will be used;
 	(See the "TEMPLATE DIRECTORY" section of linkgit:git-init[1].)
 
-`-c` `<key>=<value>`::
-`--config` `<key>=<value>`::
+`-c <key>=<value>`::
+`--config <key>=<value>`::
 	Set a configuration variable in the newly-created repository;
 	this takes effect immediately after the repository is
 	initialized, but before the remote history is fetched or any
@@ -339,8 +339,8 @@ Specify the given ref storage format for the repository. The valid values are:
 +
 include::ref-storage-format.adoc[]
 
-`-j` _<n>_::
-`--jobs` _<n>_::
+`-j <n>`::
+`--jobs <n>`::
 	The number of submodules fetched at the same time.
 	Defaults to the `submodule.fetchJobs` option.