Corrections to "M" page

[nsmarkop]

I found two incorrect entries for strokes on the M page with respect to Plover's current dictionary.

1. PHAUL outputs mall instead of maul .
2. PH-BG outputs {Mc^}{-|} instead of mechanic.

The second one didn't seem to have an obvious replacement since it's a multi-stroke word now which is why I'm making an issue instead of a pull request.