Use ⇧^H for “Documentation for Word”.

^H now used by DashMate. Also mention ri in command name.
Make “Documentation for Word (APIDock)” visible again.

Typing ⇧^H should show a menu with both “Documentation for Word …” commands. Therefore we need to include `attr.os-version.10.9` in the scope, to make sure both commands have the same precedence.