Merge pull request #55 from kucherenkovova/flight-response-doc #24

	name: CI

	on:
	push:
	branches:
	- master

	jobs:
	docs:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Install additional packages
	run: sudo apt-get update -y && sudo apt-get install -y maven default-jdk && sudo pip install -U sphinx sphinx_rtd_theme
	- name: Make documentation
	run: cd docs && make
	- name: Commit documentation changes
	run: \|
	git clone https://github.com/openskynetwork/opensky-api.git --branch gh-pages --single-branch gh-pages
	cp -r docs/free/_build/html/* gh-pages/
	cd gh-pages
	git config --local user.email "[email protected]"
	git config --local user.name "GitHub Action"
	git add .
	git commit -m "Update documentation" -a \|\| true
	# The above command will fail if no changes were present, so we ignore
	# the return code.
	- name: Push changes
	uses: ad-m/github-push-action@master
	with:
	branch: gh-pages
	directory: gh-pages
	github_token: ${{ secrets.GITHUB_TOKEN }}

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