Add documentation about MDS index for discovery page (#119) #1129

	name: CI Workflow

	on: [push]

	jobs:

	test:
	runs-on: ubuntu-latest
	services:
	postgres:
	image: postgres:9.6
	env:
	POSTGRES_USER: metadata_user
	POSTGRES_PASSWORD: metadata_pass
	POSTGRES_DB: test_metadata
	ports:
	- 5432:5432
	options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
	steps:
	- uses: actions/checkout@v1
	- name: Set up Python 3.9
	uses: actions/setup-python@v1
	with:
	python-version: 3.9
	- uses: actions/cache@preview
	with:
	path: ~/.cache/pypoetry/virtualenvs
	key: ${{ runner.os }}-poetry-${{ hashFiles(format('{0}{1}', github.workspace, '/poetry.lock')) }}
	restore-keys: \|
	${{ runner.os }}-poetry-
	- name: Install dependencies
	run: \|
	pip install poetry
	poetry install -vv --no-interaction
	poetry show -vv
	- name: Test with pytest
	env:
	DB_HOST: localhost
	DB_PORT: 5432
	DB_USER: metadata_user
	DB_PASSWORD: metadata_pass
	PGPASSWORD: metadata_pass
	run: \|
	poetry run pytest --cov=src --cov=migrations/versions --cov-fail-under=94 --cov-report xml
	- name: Submit coverage report
	if: github.ref == 'refs/heads/master'
	env:
	COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_TOKEN }}
	run: \|
	pip install coveralls
	coveralls

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