Docs: Tidied changelog headers #249

	name: Has hsds_schema.py been run
	on: [push, pull_request]

	jobs:
	has_hsds_schema_py_been_run:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Setup python
	uses: actions/setup-python@v2
	with:
	python-version: 3.9
	architecture: x64
	- run: sudo apt-get install graphviz libgraphviz-dev pkg-config
	- uses: actions/cache@v1
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	- run: pip install -r requirements.txt
	- run: hsds_schema.py docs-all
	- run: git diff --exit-code

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