Add legged manual for legged_balance. #522

	# This is a format job. Pre-commit has a first-party GitHub action, so we use
	# that: https://github.com/pre-commit/action

	name: format

	on:
	workflow_dispatch:
	pull_request:
	push:

	jobs:
	pre-commit:
	name: pre-commit
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	- name: Install clang-format-10
	run: \|
	wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key\|sudo apt-key add -
	sudo apt-get install clang-format-10
	- name: Install catkin-lint
	run: \|
	lsb_release -sc
	sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'
	sudo apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654
	sudo apt-get -q update
	sudo apt-get -q install python3-rosdep
	sudo rosdep init
	rosdep update
	sudo apt-get -q install catkin-lint
	export ROS_DISTRO=noetic
	- uses: pre-commit/[email protected]

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