Fix formatting of example blocks

With the new stylesheet example blocks (delimited with ====) are
rendered as rather intrusive boxes with large padding in yellow
and grey.

This patch replaces the example blocks with simple code blocks
(delimited with ----) that better match the overall style of the
documentation.

Change-Id: Id95387cdb153332c2066e2d5e378697647dbca52
Signed-off-by: Michael Ochmann <michael.ochmann@sap.com>
diff --git a/Documentation/cmd-receive-pack.txt b/Documentation/cmd-receive-pack.txt
index 0285ef7..798f872 100644
--- a/Documentation/cmd-receive-pack.txt
+++ b/Documentation/cmd-receive-pack.txt
@@ -42,25 +42,25 @@
 == EXAMPLES
 
 Send a review for a change on the master branch to charlie@example.com:
-=====
+----
 	git push ssh://review.example.com:29418/project HEAD:refs/for/master%r=charlie@example.com
-=====
+----
 
 Send reviews, but tagging them with the topic name 'bug42':
-=====
+----
 	git push ssh://review.example.com:29418/project HEAD:refs/for/master%r=charlie@example.com,topic=bug42
-=====
+----
 
 Also CC two other parties:
-=====
+----
 	git push ssh://review.example.com:29418/project HEAD:refs/for/master%r=charlie@example.com,cc=alice@example.com,cc=bob@example.com
-=====
+----
 
 Configure a push macro to perform the last action:
-====
+----
 	git config remote.charlie.url ssh://review.example.com:29418/project
 	git config remote.charlie.push HEAD:refs/for/master%r=charlie@example.com,cc=alice@example.com,cc=bob@example.com
-====
+----
 
 afterwards `.git/config` contains the following:
 ----
@@ -71,9 +71,9 @@
 
 and now sending a new change for review to charlie, CC'ing both
 alice and bob is much easier:
-====
+----
 	git push charlie
-====
+----
 
 == SEE ALSO