Update README.md

README.md

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 Simple monitor for displaying MIDI status for digital pianos.
 
-Supports a keyboard span of 9 octaves (C0-B8, MIDI note number 12-119), as well as
-pedal status for soft pedal/una corda (MIDI CC number 67, binary switch: 0-63 is off,
-64-127 is on), sostenuto (MIDI CC number 66, binary switch: 0-63 is off, 64-127 is on),
-and sustain (MIDI CC number 64, values from 0-127).
+Supports a keyboard span of **9 octaves** (C0-B8, MIDI note number 12-119), as well as
+granular pedal status display for **soft pedal/una corda** (MIDI CC number 67),
+**sostenuto** (MIDI CC number 66), and **sustain** (MIDI CC number 64, values from 0-127).
 
 ![Screenshot](./docs/screenshot.png)
 
-Tested with Node v.14.1.0
+Tested with Node v.14.1.0.
 
 ## Instructions