add qiime2 tool yaml file #617

	name: Linting and validation of tool requests

	# # Controls when the action will run. Triggers the workflow on push or pull request
	# # events but only for the master branch
	on:
	pull_request:
	branches: [ master ]

	# # A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0 # number of commits to fetch. 0 indicates all history for all branches and tags
	# Set up python environment
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.9
	# Install python dependencies for check_files script
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r .ci/requirements.txt
	# Run check files script
	- name: Run script to check pull request files
	env:
	COMMIT_RANGE: "HEAD~.."
	run: bash .ci/check_request_files.sh

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