message: add doxygen to the docs
diff: @@ -103,11 +103,25 @@ likely that an older version of the Rust compiler is also supported.
  # Running the tests
  -`./test.sh`
  +```bash
  +./test.sh
  +```
  You can optionally run the tests with Valgrind by setting the environment variable **VALGRIND** to *true*
  -`VALGRIND=true ./test.sh`
  +```bash
  +VALGRIND=true ./test.sh
  +```
  +
  +# Documentation
  +
  +HTML documentation of the exposed functions can be generated with Doxygen by running
  +
  +```bash
  +doxygen
  +```
  +
  +The documentation is generated in the ./docs/html directory.
  # License
  