16 more auto manuals added

16 more vehicle manuals and guides were added recently:

Chevrolet:
   - 3 owner’s manuals

Chrysler:
   - 1 owner’s manual

Ford:
   - 4 owner’s manuals
   - 1 owner’s manual supplement
   - 4 quick reference guides
   - 1 emergency response guide

Mercury:
   - 2 owner’s manuals