Change git.zuul-ci to opendev

Let's use opendev instead of git.zuul-ci.org since the later is a
redirect.

Change-Id: I2cc5a5f8eeaf1b649c4e047ae88479675f1df488

src/zuulv3/getting-started.rst

@@ -601,7 +601,7 @@ Important Links
 ===============
 
 * https://zuul-ci.org/
-* https://git.zuul-ci.org/cgit/zuul
+* https://opendev.org/zuul/zuul
 * https://zuul-ci.org/docs/zuul
 * https://zuul-ci.org/docs/zuul-jobs/
 * https://docs.openstack.org/infra/openstack-zuul-jobs/
@@ -645,7 +645,7 @@ RHEL / CentOS / Fedora / OpenSuse
 Actual Quick Start
 ==================
 
-* git clone https://git.zuul-ci.org/zuul
+* git clone https://opendev.org/zuul/zuul
 * cd zuul
 * cd doc/source/admin/examples
 * docker-compose up
@@ -677,7 +677,7 @@ Initial provided config
   and ``etc_zuul/main.yaml``
 * Gerrit Connection named "gerrit"
 * Zuul user for that connection
-* Git connection named "zuul-ci.org" for ``zuul-jobs`` standard library
+* Git connection named "opendev.org" for ``zuul-jobs`` standard library
 
 Initial tenant
 ==============
@@ -727,10 +727,10 @@ zuul.conf part 2
   baseurl=http://gerrit:8080
   auth_type=basic
 
-  [connection "zuul-ci.org"]
-  name=zuul-ci
+  [connection "opendev.org"]
+  name=opendev
   driver=git
-  baseurl=https://git.zuul-ci.org/
+  baseurl=https://opendev.org/
 
 main.yaml
 =========
@@ -746,9 +746,9 @@ main.yaml
           untrusted-projects:
             - test1
             - test2
-        zuul-ci.org:
+        opendev.org:
           untrusted-projects:
-            - zuul-jobs:
+            - zuul/zuul-jobs:
                 include:
                   - job