Change "finish" to "return" in the CoffeeTagAuto function

Finish is used to stop "sourcing" file in functions we use return.
Change "CoffeeAutoDisable" to "CoffeeAutoTagDisable" in the README.md

To make it consistent with the source code.
Merge pull request #42 from derenio/fix/CoffeeAutoTagDisabled

Fix/coffee auto tag disabled