added sourcery badge
# A Python library for 'bitcoin cryptography'
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-[![Linted with flake8](https://img.shields.io/badge/lint-flake8-%231674b1)](https://flake8.pycqa.org)
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-[![Checked with mypy](https://img.shields.io/badge/type--check-mypy-%231674b1)](http://mypy-lang.org/)
-[![Checked with pyright](https://img.shields.io/badge/type--check-pyright-%231674b1)](https://github.com/microsoft/pyright)
-[![security: bandit](https://img.shields.io/badge/security-bandit-yellow.svg)](https://github.com/PyCQA/bandit)
-[![PyPI version](https://img.shields.io/pypi/v/btclib.svg)](https://pypi.python.org/pypi/btclib/)
+[![Linted: flake8](https://img.shields.io/badge/lint-flake8-%231674b1)](https://flake8.pycqa.org)
+[![Linted: pylint](https://img.shields.io/badge/lint-pylint-%231674b1)](https://pylint.pycqa.org)
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+[![Type-checked: pyright](https://img.shields.io/badge/type--check-pyright-%231674b1)](https://github.com/microsoft/pyright)
+[![Refactored: sourcery](https://img.shields.io/badge/refactor-sourcery-%231674b1)](https://sourcery.ai)
+[![Security: bandit](https://img.shields.io/badge/security-bandit-%231674b1.svg)](https://github.com/PyCQA/bandit)
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[![ReadtheDocs](https://img.shields.io/readthedocs/btclib.svg)](https://btclib.readthedocs.io)
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