Deprecations and Changes
* Add excitation mode as a required field for `ExcitationSource`, and internal check for `excitation_mode` argument ([PR7](https://github.com/catalystneuro/ndx-ophys-devices/pull/7))
Bug Fixes
Features
Improvements
* Add example notebook ([PR8](https://github.com/catalystneuro/ndx-ophys-devices/pull/8))