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/code/pull_request.rst b/howto/code/pull_request.rst
index b02b992..a09f6e6 100644
--- a/howto/code/pull_request.rst
+++ b/howto/code/pull_request.rst
@@ -18,7 +18,7 @@
 unrelated to your patch/changeset you can re-trigger the job by commenting
 on the patch with *recheck*.
 
-- Visit gerrit:  https://gerrit.opencord.org/c/bbsim/+/34384
+- Visit gerrit:  https://gerrit.lfbroadband.org/c/bbsim/+/34384
 - Click the pencil icon in the top left by reviewers.
 - Comment/description text: ``recheck``
 
@@ -46,7 +46,7 @@
 Manually add reviewers at a later date
 --------------------------------------
 
-- `Naviagate to your patch in gerrit <https://gerrit.opencord.org/c/bbsim/+/34384>`_
+- `Naviagate to your patch in gerrit <https://gerrit.lfbroadband.org/c/bbsim/+/34384>`_
 - Click the pencil icon in the top left by reviewers.
 - Add community members to request a review.