Improve changelog config, normalize YAML headers (#69)

* By default use FQCNs in new plugin/module announcements, and add period to new plugin/module announcements without ending punctuation.

* Normalize all non-autogenerated YAML files to start with '---'.

.github/workflows/ansible-test.yml

@@ -1,3 +1,4 @@
+---
 # README FIRST
 # 1. Subscribe to https://github.com/ansible-collections/news-for-maintainers
 #    (click the Watch button on the homepage > Custom > Issues)

.github/workflows/extra-docs-linting.yml

@@ -1,3 +1,4 @@
+---
 name: Lint extra docsite docs and links
 on:
   # Run CI against all pushes (direct commits, also merged PRs), Pull Requests

changelogs/config.yaml

@@ -1,3 +1,5 @@
+---
+add_plugin_period: true
 changelog_filename_template: ../CHANGELOG.rst
 changelog_filename_version_depth: 0
 changes_file: changelog.yaml
@@ -27,3 +29,4 @@ sections:
   - Known Issues
 title: CHANGE THIS IN changelogs/config.yaml!
 trivial_section_name: trivial
+use_fqcn: true

codecov.yml

@@ -1,3 +1,4 @@
+---
 # CHANGE THIS
 fixes:
    - "/ansible_collections/NAMESPACE/COLLECTION/::"

galaxy.yml

@@ -1,3 +1,4 @@
+---
 # See https://docs.ansible.com/ansible/latest/dev_guide/collections_galaxy_meta.html
 
 namespace: community