docs: Update repo links in the readme

Now can point directly to the appropiate sections using latest No reason to have link to examples here.

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PR Checklist

Please check if your PR fulfills the following requirements:

[x] I am not introducing a breaking change (if you are, flag in conventional commit message with BREAKING CHANGE: describing the break)
[x] I am not introducing a new dependency (add notes below if you are)
[ ] I have added unit tests for the new feature or bug fix (if not, why?) N/A
[x ] I have fully tested (add details below) this the new feature or bug fix (if not, why?)
[ ] I have opened a PR for the related docs change (if not, why?) N/A

Click link in rendered Readme Verify it opens the correct section in the EdgeX docs