Update incremental-refresh.md

[edhans]

Just a quick list of steps to explain how to remove the Incremental Refresh policy from a table. If there is a better way please feel free to edit or let me know.

[edhans]

I have no idea why this failed. I've done this before, but it is fussing about a development token... 🤷‍♂️

[mlonsk]

Hi Ed This is great, thank you for adding this to the documentation Much appreciated.

Don't worry about the build, is a Github Action thing.