message: Clarify in example that the -p is not associated with the input
diff: @@ -48,7 +48,7 @@ $ rage -o example.png.age -r age1uvscypafkkxt6u2gkguxet62cenfmnpc0smzzlyun0lzszf
  Files can be encrypted with a passphrase by using `-p/--passphrase`.
  ```bash
  -$ rage -o example.png.age -p example.png
  +$ rage -p -o example.png.age example.png
  Type passphrase: [hidden]
  Confirm passphrase:
  $ rage -d -p example.png.age >example.png
  