Update README.md

README.md

 # vent-diplay
 A Ventilator Display that consumes PIRDS data and performs most clinical respiration calculations
+
+This is an important part of the Public Invention's goal of creating an opens source ventilator ecosystem.
+This is a stand-alone .html file with about a thousand lines of JavaScript that implements a clinical display
+that doctors want to see of an operting ventilator. It includes live data trace plots of pressure and flow, as
+well as calculated values such as tidal volume.