Remove misleading badges from README

Author: treyhunner

README.rst

@@ -5,8 +5,6 @@ countdown-cli
 
 |Tests| |Codecov|
 
-|pre-commit| |Black|
-
 .. |PyPI| image:: https://img.shields.io/pypi/v/countdown-cli.svg
    :target: https://pypi.org/project/countdown-cli/
    :alt: PyPI
@@ -25,12 +23,6 @@ countdown-cli
 .. |Codecov| image:: https://codecov.io/gh/treyhunner/countdown-cli/branch/main/graph/badge.svg
    :target: https://codecov.io/gh/treyhunner/countdown-cli
    :alt: Codecov
-.. |pre-commit| image:: https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit&logoColor=white
-   :target: https://github.com/pre-commit/pre-commit
-   :alt: pre-commit
-.. |Black| image:: https://img.shields.io/badge/code%20style-black-000000.svg
-   :target: https://github.com/psf/black
-   :alt: Black
 
 This project is based on a `Python Morsels`_ exercise for a command-line countdown timer.
 If you're working on that exercise right now, please **don't look at the source code** for this. 😉