Feedback for tql/dimensionSpec.md

[siracusa]

What's a "dimension"? What is a valid value for a "dimension"? What are the valid values for the "type" field?

[winsmith]

That's a good question, let's use it to improve the docs!

@voidedmain can you update the docs to make sure to include telemetrydeck parameters and explain why there are signals and metrics in the background as info bubble?