v1.1.2

Changed

• Watcher<T> now uses interior mutability via AtomicUsize. This allows a
  watcher to be stored inside of a static variable and be used between multiple
  threads without involving a mutex.
• This package's MSRV was incorrectly set. It has been updated to 1.64, which
  was the actual MSRV of 1.1.1

Fixes

• Watcher<T> no longer requires T to be Clone for itself to be cloneable.
• .crate-docs.md is now included in the released package.