Update version scheme to calendar versioning

Author: hackebrot

README.md

@@ -10,6 +10,8 @@ CLI app for managing GitHub labels for Python 3.6 and newer. 📝
 pip install labels
 ```
 
+Versions follow [Calendar Versioning][calver] using a `YY.MINOR.MICRO` scheme. 🗓
+
 ## Authentication
 
 The labels CLI connects to the GitHub API to modify labels for a GitHub
@@ -173,6 +175,7 @@ Distributed under the terms of the MIT license, **labels** is free and open
 source software.
 
 [PyPI]: https://pypi.org/project/labels/
+[calver]: https://calver.org
 [code of conduct]: https://github.com/hackebrot/labels/blob/master/CODE_OF_CONDUCT.md
 [contributing]: https://github.com/hackebrot/labels/blob/master/.github/CONTRIBUTING.md
 [create token]: https://blog.github.com/2013-05-16-personal-api-tokens/

setup.py

@@ -9,7 +9,7 @@ def read(*args: str) -> str:
 
 setuptools.setup(
     name="labels",
-    version="0.3.0.dev0",
+    version="20.1.0.dev0",
     author="Raphael Pierzina",
     author_email="[email protected]",
     maintainer="Raphael Pierzina",

src/labels/__init__.py

@@ -1,4 +1,4 @@
-__version__ = "0.3.0.dev0"
+__version__ = "20.1.0.dev0"
 __title__ = "labels"
 __description__ = "CLI app for managing GitHub labels for Python 3.6 and newer. 📝"
 __url__ = "https://github.com/hackebrot/labels"