Need small part of roof patched (Gwynn Oak, Maryland)

Hello, I need a small part of my roof patched/repaired.
A few shingles came off during a wind storm and I need them to be reattached.
I already have a ladder, hammer, nails.
I would just need some sort of proof that you have experience working with roofs.
Should be a relatively quick and straightforward gig Pays $100.
I am located in Baltimore county email: Brandon