patch: Add release notes template

* Create a template to govern the generation of release notes by
  python-semantic-release.
* Bump the patch version number to test that this works as expected.

templates/.release_notes.md.j2

@@ -0,0 +1,11 @@
+{% for type_, commits in release["elements"] | dictsort %}
+### {{ type_ | capitalize if type_ != "ci" else "Continuous Integration" }}
+{%- if type_ != "unknown" %}
+{% for commit in commits -%}
+{%- set summary = commit.message.rstrip().splitlines()[0] -%}
+{%- set details = commit.message.rstrip().splitlines()[2:] -%}
+* {{ summary }} ([`{{ commit.hexsha[:7] }}`]({{ commit.hexsha | commit_hash_url }}))
+{% if details %}
+{% for line in details %}{% if line.strip() %}  {{ line }}{% endif %}
+{% endfor %}{% endif -%}
+{% endfor %}{% endif %}{% endfor %}