[bug 1205013] Add note about making sure docs build
[bug 1205013] Add note about making sure docs build

Ritsyy/fjord,Ritsyy/fjord,lgp171188/fjord,lgp171188/fjord,Ritsyy/fjord,mozilla/fjord,hoosteeno/fjord,lgp171188/fjord,hoosteeno/fjord,mozilla/fjord,hoosteeno/fjord,mozilla/fjord,Ritsyy/fjord,lgp171188/fjord,mozilla/fjord,hoosteeno/fjord