Rewrite code samples README for Node/Express sign in users - REVISION

[kengaderdus]

Purpose

With the rebranding enabling Microsoft Entra in Azure Portal, the inaccuracies in our READMEs are increasing daily. There's also the problem of duplication of content (similar content in README and learn docs), and customer being unable to find the product docs if they first land on the code samples. We're rewriting this README, also tag it to make it easier for customers to know the use case it addresses, and to link it to the docs. Similar feedback was given during CIAM developer journey.

Does this introduce a breaking change?

[ ] Yes
[-] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[-] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

Use new REAME instructions to run the sample

• Test the code

What to Check

Verify that the following are valid

• Verify that the new REAME instructions are valid

Other Information

[kengaderdus]

assign-reviewer: @garrodonnell

[kengaderdus]

@kleggMS, would appreciate a review and your thoughts.

[kengaderdus]

Dear reviewers, thank you for your comments.