Update README.md

README.md

@@ -34,13 +34,13 @@ Device: [Neurosity Crown](https://neurosity.co) - 8 channels [CP3, C3, F5, PO3,
 
 ### Data Instances
 
-All dataset are timeseries with a unixTimestamp column
+All dataset are timeseries with a unixTimestamp column. Generated by using the [Neurosity brainwaves api](https://docs.neurosity.co/docs/api/brainwaves)
 
 - rawBrainwaves: voltage readings across eeg channels
 - signalQuality: standard deviation values & label (great, good, poor, noContact) per channel
 - powerByBand: computed eeg power per channel (i.e CP3_delta, CP3_theta, CP3_alpha, CP3_beta, CP3_gamma)
-- focus: prediction of user focus based on gamma waves.
-- calm: prediction of user calm based on alpha waves.
+- focus: prediction of user [focus based on gamma waves](https://docs.neurosity.co/docs/api/focus).
+- calm: prediction of user [calm based on alpha waves](https://docs.neurosity.co/docs/api/calm).
 
 ### Data Splits