add: 12.29task3 test3 obs1 #4

	name: pre-commit

	on:
	pull_request:
	push:
	branches:
	- main
	- develop
	- 'release/**'
	workflow_dispatch:

	jobs:
	pre-commit:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	with:
	python-version: 3.10.x
	- uses: actions/setup-ruby@v1
	env:
	ImageOS: ubuntu20
	with:
	ruby-version: '2.6'
	- uses: actions/setup-dotnet@v3
	with:
	dotnet-version: '7.0.100'
	- name: Install manual dependencies
	run: \|
	python -m pip install pre-commit
	pre-commit install
	- name: Run pre-commit
	run: \|
	pre-commit run --all-files
	markdown-link-check:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	- uses: actions/setup-node@v2
	with:
	node-version: '12'
	- name: Install manual dependencies
	# pin markdown-link-check version to support multi-level reference link
	run: \|
	sudo npm install -g [email protected]
	python -m pip install pre-commit
	pre-commit install
	- name: Run markdown checker
	run: \|
	pre-commit run --hook-stage manual markdown-link-check --all-files
	validate-meta-files:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	- run: python utils/validate_meta_files.py

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