[PATCH] doc: fix non-existing config name

[muzimuzhi Z <muzimuzhi@gmail.com>]

Replace non-existent `branch.<name>.fetch` to `remote.<repository>.fetch`, in
the first example in `git-fetch` doc, which was introduced in
d504f69 (modernize fetch/merge/pull examples, 2009-10-21).

Rename placeholder `<name>` to `<repository>`, to be consistent with all other
uses in git docs, except that `git-config.txt` uses `remote.<name>.fetch` in
its "Variables" section.

Also add missing monospace markups.

Signed-off-by: muzimuzhi <muzimuzhi@gmail.com>
---
 Documentation/git-fetch.txt | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt
index 63d9569..fba66f1 100644
--- a/Documentation/git-fetch.txt
+++ b/Documentation/git-fetch.txt
@@ -251,10 +251,10 @@ EXAMPLES
 $ git fetch origin
 ------------------------------------------------
 +
-The above command copies all branches from the remote refs/heads/
-namespace and stores them to the local refs/remotes/origin/ namespace,
-unless the branch.<name>.fetch option is used to specify a non-default
-refspec.
+The above command copies all branches from the remote `refs/heads/`
+namespace and stores them to the local `refs/remotes/origin/` namespace,
+unless the `remote.<repository>.fetch` option is used to specify a
+non-default refspec.

 * Using refspecs explicitly:
 +
-- 
2.39.0