add crosslinks for changelog fragments (#77022)

docs/docsite/rst/community/collection_development_process.rst

@@ -43,8 +43,8 @@ We do not merge every PR. Here are some tips for making your PR useful, attracti
 
 .. _collection_changelogs:
 
-Changelogs
+Creating changelog fragments
-----------
+-----------------------------
 
 Changelogs help users and developers keep up with changes to Ansible collections. Many collections build changelogs for each release from fragments. For collections that use this model, you **must** add a changelog fragment to any PR that changes functionality or fixes a bug.
 

docs/docsite/rst/community/development_process.rst

@@ -140,8 +140,8 @@ We do not merge every PR. Here are some tips for making your PR useful, attracti
 
 .. _community_changelogs:
 
-Changelogs
+Creating changelog fragments
-----------
+------------------------------
 
 Changelogs help users and developers keep up with changes to ansible-core and Ansible collections. Ansible and many collections build changelogs for each release from fragments. For ansible-core and collections using this model, you **must** add a changelog fragment to any PR that changes functionality or fixes a bug.
 

docs/docsite/rst/dev_guide/developing_collections_changelogs.rst

@@ -70,6 +70,8 @@ If your collection is part of Ansible, use one of the following three options  t
 
 .. seealso::
 
+   :ref:`collection_changelogs`
+       Learn how to create good changelog fragments.
    :ref:`collections`
        Learn how to install and use collections.
    :ref:`contributing_maintained_collections`

docs/docsite/rst/dev_guide/testing/sanity/changelog.rst

@@ -15,3 +15,5 @@ One or more of the following sections are required:
 - known_issues
 
 New modules and plugins must not be included in changelog fragments.
+
+See :ref:`collection_changelogs` for details.