Circuitpython-functools

Updated installation instructions for `circup` in README, thanks mMerlin for pointing out the issue!

No functional changes were made since the last release.

To use in CircuitPython, simply install the [CircuitPython Community Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install circuitpython-functools`.

Read the [docs](https://circuitpython-functools.readthedocs.io/en/latest/) for info on how to use it.

Fixed `conf.py` and how it imports the RTD theme.

To use in CircuitPython, simply install the [CircuitPython Community Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install circuitpython-functools`.

Read the [docs](https://circuitpython-functools.readthedocs.io/en/latest/) for info on how to use it.

Updated licensing and clarification of differences from original code, as well as updated requirements for ReadTheDocs builds.

To use in CircuitPython, simply install the [CircuitPython Community Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install circuitpython-functools`.

Read the [docs](https://circuitpython-functools.readthedocs.io/en/latest/) for info on how to use it.

Added PSF-2.0 license for cache-related functionality, which is ported from CPython.

To use in CircuitPython, simply install the [CircuitPython Community Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install circuitpython-functools`.

Read the [docs](https://circuitpython-functools.readthedocs.io/en/latest/) for info on how to use it.

Added `wraps` for use when creating decorators.

To use in CircuitPython, simply install the [CircuitPython Community Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install circuitpython-functools`.

Read the [docs](https://circuitpython-functools.readthedocs.io/en/latest/) for info on how to use it.

Update the CI to use the new composite actions and update `pre-commit`. No functional changes were made since the last release.

To use in CircuitPython, simply install the [CircuitPython Community Bundle](https://circuitpython.org/libraries).

To use in CPython, `pip3 install circuitpython-functools`.

Read the [docs](https://circuitpython-functools.readthedocs.io/en/latest/) for info on how to use it.