doc(profiles): Update BASE_FLOW_ID doc
doc(profiles): Update BASE_FLOW_ID doc

The doc was invalidated by e69fc2a8, wherein the number of profiles
increased to 8.

Rewrite the doc to be agnostic to the number of profiles.

phuedx/micro-device-lab,phuedx/micro-device-lab,phuedx/micro-device-lab