Features
- `autopep695` now supports piping the output of a command to either `check` or `format`. Piped input will be processed **in addition** to regular paths passed through the `paths` argument. ([16](https://github.com/yowoda/autopep695/issues/16))
- The `check` command now outputs a detailed summary of the check, including the number of files that were successful or that triggered parsing, internal or PEP 695-related errors. Furthermore, the public interface is now documented. ([17](https://github.com/yowoda/autopep695/issues/17))