cortex-m-rtic 0.5.4

Real-Time Interrupt-driven Concurrency (RTIC): a concurrency framework for building real-time systems
Documentation
# Contributing
## New features
New features should go through the [RFC process][rfcs] before a Pull Request is made to this repository.

[rfcs](https://github.com/rtic-rs/rfcs)

## Bugs
Report bugs by creating an issue in this repository.

## Pull Requests
Please make pull requests against the master branch.

Always use rebase instead of merge when bringing in changes from master to your feature branch.

## Writing documentation
Documentation improvements are always welcome. The source for the book is in `book/` and API documentation is generated from the source code.