hi all opening this issue as a placeholder for a quick docs fix of the [plan-remove](https://pnp.github.io/cli-microsoft365/cmd/planner/plan/plan-remove/) file. the .md docs file has wrong heading in title 
hi all opening this issue as a placeholder for a quick docs fix of the plan-remove file.

the .md docs file has wrong heading in title