Change domain from opencord.org to lfbroadband.org

We have moved all sites from the opencord.org domain to
lfbroadband.org (except wiki/Jira, which are now hosted on Atlassian
Cloud).

Signed-off-by: Eric Ball <eball@linuxfoundation.org>
Change-Id: I9624ae92e9c193fa2d2fac9ab30ad108a812306e
diff --git a/howto/release/ci-management/clone_and_branch_testing.rst b/howto/release/ci-management/clone_and_branch_testing.rst
index 12bdf62..13f68de 100644
--- a/howto/release/ci-management/clone_and_branch_testing.rst
+++ b/howto/release/ci-management/clone_and_branch_testing.rst
@@ -27,7 +27,7 @@
    :emphasize-lines: 5,8,14
 
    # Clone repo:ci-management
-   % git clone ssh://gerrit.opencord.org:29418/ci-management.git
+   % git clone ssh://gerrit.lfbroadband.org:29418/ci-management.git
    % cd ci-management
 
    % make help | grep release