Use system-required instead of merge-check

Change-Id: I09a0f9ecb3bba693caac67958675cce7fd554a5e
Depends-On: I45213b92a7af6b8b7fd35feb60dbd346b2f7bc5f

doc/source/creators.rst

@@ -516,11 +516,11 @@ Every project needs at least one test job or patches will not be able to land.
 There are a multitude of options at your disposal for jobs, but to get started
 you should do the following:
 
-Add merge-check template
-------------------------
+Add system-required template
+----------------------------
 
 Every project needs to have an entry in ``zuul.d/projects.yaml``
-containing an entry for the ``merge-check`` template.
+containing an entry for the ``system-required`` template.
 
 Edit ``zuul.d/projects.yaml`` and add an entry for your project in alphabetical
 order:
@@ -530,7 +530,7 @@ order:
    - project:
        name: openstack/<projectname>
        templates:
-         - merge-check
+         - system-required
 
 Adding additional jobs can be done in the central repository of in
 your new project's ``.zuul.yaml`` file. For more information on
@@ -539,7 +539,7 @@ addition additional jobs into your project, see
 
 .. important::
 
-   This addition of ``merge-check`` template needs to be a separate
+   This addition of ``system-required`` template needs to be a separate
    change stacked on top of the project creation one. Submit them
    together. This second change will fail initially, it can only pass
    once the first change merged - and then you need to add a
@@ -1166,7 +1166,7 @@ including the following changes:
       - project:
           name: openstack/<projectname>
           templates:
-            - merge-check
+            - system-required
             - translation-jobs
 
 

doc/source/zuulv3.rst

@@ -786,7 +786,7 @@ What Not to Convert?
 ~~~~~~~~~~~~~~~~~~~~
 
 Note that some jobs should always stay in `project-config`_. We always
-like to have ``merge-check`` in `project-config`_, since that's a system
+mast have ``system-required`` in `project-config`_, since that's a system
 thing.
 
 Official OpenStack projects should implement the OpenStack wide jobs
@@ -800,7 +800,7 @@ access the external translation site.
 So, a non-complete list of templates that should not live in project's own
 configuration but stay in `project-config`_:
 
-* merge-check (system template)
+* system-required (system template)
 * announce-release
 * check-requirements (PTI)
 * openstack-python-jobs (PTI)