Using https instead of http

The security of https is higher than http

Change-Id: I18bab6daea293cad7c063a4075535b9dc03cf633

deploy-guide/source/conf.py

@@ -74,7 +74,7 @@
 #           from git log.
 #   bug_tag: Tag for categorizing the bug. Must be set manually.
 # These variables are passed to the logabug code via html_context.
-giturl = u'http://git.openstack.org/cgit/openstack/Kolla/tree/deploy-guide/source'  # noqa
+giturl = u'https://git.openstack.org/cgit/openstack/Kolla/tree/deploy-guide/source'  # noqa
 git_cmd = "/usr/bin/git log | head -n1 | cut -f2 -d' '"
 gitsha = os.popen(git_cmd).read().strip('\n')
 html_context = {"gitsha": gitsha, "bug_tag": bug_tag,