README update for new UI callbacks
README update for new UI callbacks

GeorgeStrakhov/node-core-audio,GeorgeStrakhov/node-core-audio,ZECTBynmo/node-core-audio,ZECTBynmo/node-core-audio,ZECTBynmo/node-core-audio,GeorgeStrakhov/node-core-audio,GeorgeStrakhov/node-core-audio,ZECTBynmo/node-core-audio