message: Fix copypasta README.md formatting
diff: # copypasta
  -copypasta is a (rust-clipboard)[https://github.com/aweinstock314/rust-clipboard] fork, adding support for the Wayland clipboard.
  +copypasta is a [rust-clipboard](https://github.com/aweinstock314/rust-clipboard) fork, adding support for the Wayland clipboard.
  rust-clipboard is a cross-platform library for getting and setting the contents of the OS-level clipboard.
  