Add Detailed Description for Check Broken URLs in `CONTRIBUTING.md` and Improve Markdown in 01 and 02 #89

	name: Validate Documentation Links

	on:
	pull_request_target:
	branches:
	- main
	paths:
	- '**.md'
	- '**.ipynb'
	push:
	branches:
	- main

	permissions:
	contents: read
	pull-requests: write

	jobs:
	check-broken-paths:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repo
	uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	- name: Check broken Paths
	uses: john0isaac/[email protected]
	with:
	command: check_broken_paths
	directory: ./
	guide-url: 'https://github.com/microsoft/Phi-3CookBook/blob/main/CONTRIBUTING.md'
	github-token: ${{ secrets.GITHUB_TOKEN }}

	check-urls-locale:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repo
	uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	- name: Check URLs Country Locale
	uses: john0isaac/[email protected]
	with:
	command: check_urls_locale
	directory: ./
	guide-url: 'https://github.com/microsoft/Phi-3CookBook/blob/main/CONTRIBUTING.md'
	github-token: ${{ secrets.GITHUB_TOKEN }}

	check-broken-urls:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repo
	uses: actions/checkout@v3
	with:
	ref: ${{ github.event.pull_request.head.sha }}
	- name: Check broken URLs
	uses: john0isaac/[email protected]
	with:
	command: check_broken_urls
	directory: ./
	guide-url: 'https://github.com/microsoft/Phi-3CookBook/blob/main/CONTRIBUTING.md'
	github-token: ${{ secrets.GITHUB_TOKEN }}

Provide feedback