Move History entry about #7821 higher explain further
Move History entry about #7821 higher explain further

meteor/meteor#7821 is a breaking change for anyone running the `meteor` tool as `root` right now.  This moves it higher and explain that it's not just a warning.

Hansoft/meteor,Hansoft/meteor,mjmasn/meteor,mjmasn/meteor,Hansoft/meteor,mjmasn/meteor,mjmasn/meteor,mjmasn/meteor,mjmasn/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,mjmasn/meteor