insturment: add catergory for time + doc fix

- Add a category name for time MeasurmentType's, as there are now
  multiple.
- Fix the names of time_ms and time_us in the documentation.
2 files changed
tree: eef24bb800452bcb3ea87dbea7ac904f0e559f87
  1. devlib/
  2. doc/
  3. src/
  4. .gitignore
  5. README.rst
  6. setup.py