Sharing power automate samples

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Put an x in all the items that apply ([x], without spaces), make notes next to any that haven't been addressed.

[ ] Bug fix?
[x] New sample?
[ ] Related issues: fixes #X, partially #Y, mentioned in #Z
[ ] Needs API permissions?
[x] Has other prerequisites? (E.g. requires a list, document library, etc.)

What's in this Pull Request?

A sample to overcome 28 KB payload size limit for embedding an image in Microsoft Teams channel message using standard action in Power Automate.

Checklist

This checklist is mostly useful as a reminder of small things that can easily be forgotten – it is meant as a helpful tool rather than hoops to jump through.

Put an x in all the items that apply ([x], no spaces), make notes next to any that haven't been addressed.

[x] My pull request affects only ONE sample.
[x] I have updated the README file.
[x] My README has at least one static high-resolution screenshot (i.e. not a GIF)
[x] My README contains complete setup instructions, including pre-requisites and permissions required

pnp / powerplatform-samples

Sharing power automate samples #92

What's in this Pull Request?

Checklist