Updated contributing page with new docs branch

[rkyttle]

Pull Requests to Master

• [ ] Ensure pull requests to dev are heavily reviewed, tested and scrutinized before approving
• [ ] Run DSCEA through PowerShell Script Analyzer
• [ ] Pester and manual testing completed
• [ ] Update version number in DSCEA.psd1
• [ ] Update documentation with new release notes, link in sidebar pointing to the new page
• [ ] Perform a release on GitHub to get a snapshot of the project added to the releases section with zip file
• [ ] PowerShell gallery upload - download zip of master, remove unwanted things like docs folder, upload to ps gallery
• [ ] If needed, rebase dev on master so it shows all changes have been rolled into master as squash merge is likely to be used

Pull Requests to Dev

• [ ] Check to see if PowerShell shows any errors when running Import-Module DSCEA
• [ ] Review any lingering issues that might still be open and close them if the new release fixes the issues

[msftclas]

@rkyttle, Thanks for your contribution as a Microsoft full-time employee or intern. You do not need to sign a CLA. Thanks, Microsoft Pull Request Bot