Updated README and added a playground

Author: aure

Package.resolved

@@ -0,0 +1,19 @@
+import AudioKit
+import SoundpipeAudioKit
+import Foundation
+
+let osc = Oscillator(amplitude: 0.3)
+
+let engine = AudioEngine()
+engine.output = osc
+osc.play()
+
+try! engine.start()
+
+while true {
+    osc.frequency = Float.random(in: 200...800)
+    osc.amplitude = 0.3
+    usleep(10000)
+    osc.$amplitude.ramp(to: 0.0, duration: 0.9)
+    sleep(1)
+}

Playgrounds/Hello World.playground/Contents.swift

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>

Playgrounds/Hello World.playground/contents.xcplayground

@@ -48,41 +48,41 @@ Use Swift Package Manager and point to the URL: `https://github.com/AudioKit/Sou
 
 ## Effects / Filters
 
-* [AmplitudeEnvelope](https://github.com/AudioKit/SoundpipeAudioKit/wiki/AmplitudeEnvelope)
-* [AutoPanner](https://github.com/AudioKit/SoundpipeAudioKit/wiki/AutoPanner)
-* [AutoWah](https://github.com/AudioKit/SoundpipeAudioKit/wiki/AutoWah)
+* [Amplitude Envelope](https://github.com/AudioKit/SoundpipeAudioKit/wiki/AmplitudeEnvelope)
+* [Auto Panner](https://github.com/AudioKit/SoundpipeAudioKit/wiki/AutoPanner)
+* [Auto Wah](https://github.com/AudioKit/SoundpipeAudioKit/wiki/AutoWah)
 * [Balancer](https://github.com/AudioKit/SoundpipeAudioKit/wiki/Balancer)
-* [BandPassButterworthFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/BandPassButterworthFilter)
-* [BandRejectButterworthFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/BandRejectButterworthFilter)
-* [BitCrusher](https://github.com/AudioKit/SoundpipeAudioKit/wiki/BitCrusher)
-* [ChowningReverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ChowningReverb)
+* [Band Pass Butterworth Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/BandPassButterworthFilter)
+* [Band Reject Butterworth Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/BandRejectButterworthFilter)
+* [Bit Crusher](https://github.com/AudioKit/SoundpipeAudioKit/wiki/BitCrusher)
+* [Chowning Reverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ChowningReverb)
 * [Clipper](https://github.com/AudioKit/SoundpipeAudioKit/wiki/Clipper)
-* [CombFilterReverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/CombFilterReverb)
+* [CombFilter Reverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/CombFilterReverb)
 * [Convolution](https://github.com/AudioKit/SoundpipeAudioKit/wiki/Convolution)
-* [CostelloReverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/CostelloReverb)
-* [DCBlock](https://github.com/AudioKit/SoundpipeAudioKit/wiki/DCBlock)
-* [DynamicRangeCompressor](https://github.com/AudioKit/SoundpipeAudioKit/wiki/DynamicRangeCompressor)
-* [EqualizerFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/EqualizerFilter)
-* [FlatFrequencyResponseReverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/FlatFrequencyResponseReverb)
-* [FormantFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/FormantFilter)
-* [HighPassButterworthFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/HighPassButterworthFilter)
-* [HighShelfParametricEqualizerFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/HighShelfParametricEqualizerFilter)
-* [KorgLowPassFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/KorgLowPassFilter)
-* [LowPassButterworthFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/LowPassButterworthFilter)
-* [LowShelfParametricEqualizerFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/LowShelfParametricEqualizerFilter)
-* [ModalResonanceFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ModalResonanceFilter)
-* [MoogLadder](https://github.com/AudioKit/SoundpipeAudioKit/wiki/MoogLadder)
+* [Costello Reverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/CostelloReverb)
+* [DC Block](https://github.com/AudioKit/SoundpipeAudioKit/wiki/DCBlock)
+* [Dynamic Range Compressor](https://github.com/AudioKit/SoundpipeAudioKit/wiki/DynamicRangeCompressor)
+* [Equalizer Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/EqualizerFilter)
+* [Flat Frequency ResponseReverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/FlatFrequencyResponseReverb)
+* [Formant Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/FormantFilter)
+* [High Pass Butterworth Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/HighPassButterworthFilter)
+* [High Shelf Parametric Equalizer Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/HighShelfParametricEqualizerFilter)
+* [Korg Low Pass Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/KorgLowPassFilter)
+* [Low Pass Butterworth Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/LowPassButterworthFilter)
+* [Low Shelf Parametric Equalizer Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/LowShelfParametricEqualizerFilter)
+* [Modal Resonance Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ModalResonanceFilter)
+* [Moog Ladder](https://github.com/AudioKit/SoundpipeAudioKit/wiki/MoogLadder)
 * [Panner](https://github.com/AudioKit/SoundpipeAudioKit/wiki/Panner)
-* [PeakingParametricEqualizerFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/PeakingParametricEqualizerFilter)
+* [Peaking Parametric Equalizer Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/PeakingParametricEqualizerFilter)
 * [Phaser](https://github.com/AudioKit/SoundpipeAudioKit/wiki/Phaser)
-* [PitchShifter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/PitchShifter)
-* [ResonantFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ResonantFilter)
-* [RolandTB303Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/RolandTB303Filter)
-* [StringResonator](https://github.com/AudioKit/SoundpipeAudioKit/wiki/StringResonator)
-* [TanhDistortion](https://github.com/AudioKit/SoundpipeAudioKit/wiki/TanhDistortion)
-* [ThreePoleLowpassFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ThreePoleLowpassFilter)
-* [ToneComplementFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ToneComplementFilter)
-* [ToneFilter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ToneFilter)
+* [Pitch Shifter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/PitchShifter)
+* [Resonant Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ResonantFilter)
+* [Roland TB303 Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/RolandTB303Filter)
+* [String Resonator](https://github.com/AudioKit/SoundpipeAudioKit/wiki/StringResonator)
+* [Tanh Distortion](https://github.com/AudioKit/SoundpipeAudioKit/wiki/TanhDistortion)
+* [Three Pole Lowpass Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ThreePoleLowpassFilter)
+* [Tone Complement Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ToneComplementFilter)
+* [Tone Filter](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ToneFilter)
 * [Tremolo](https://github.com/AudioKit/SoundpipeAudioKit/wiki/Tremolo)
-* [VariableDelay](https://github.com/AudioKit/SoundpipeAudioKit/wiki/VariableDelay)
-* [ZitaReverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ZitaReverb)
+* [Variable Delay](https://github.com/AudioKit/SoundpipeAudioKit/wiki/VariableDelay)
+* [Zita Reverb](https://github.com/AudioKit/SoundpipeAudioKit/wiki/ZitaReverb)