adding categories

Tone/component/analysis/Follower.ts

@@ -16,6 +16,7 @@ export interface FollowerOptions extends ToneAudioNodeOptions {
  * Input +--> Abs +----> OnePoleFilter +--> Output
  *          +-----+    +---------------+
  * ```
+ * @category Component
  */
 export class Follower extends ToneAudioNode<FollowerOptions> {
 

Tone/component/filter/FeedbackCombFilter.ts

@@ -14,6 +14,7 @@ export interface FeedbackCombFilterOptions extends ToneAudioNodeOptions {
 /**
  * Comb filters are basic building blocks for physical modeling. Read more
  * about comb filters on [CCRMA's website](https://ccrma.stanford.edu/~jos/pasp/Feedback_Comb_Filters.html).
+ * @category Component
  */
 export class FeedbackCombFilter extends ToneAudioWorklet<FeedbackCombFilterOptions> {
 	

Tone/component/filter/LowpassCombFilter.ts

@@ -16,6 +16,7 @@ interface LowpassCombFilterOptions extends ToneAudioNodeOptions {
 /**
  * A lowpass feedback comb filter. It is similar to
  * [[FeedbackCombFilter]], but includes a lowpass filter.
+ * @category Component
  */
 export class LowpassCombFilter extends ToneAudioNode<LowpassCombFilterOptions> {
 

Tone/component/filter/OnePoleFilter.ts

@@ -18,6 +18,7 @@ export interface OnePoleFilterOptions extends ToneAudioNodeOptions {
  * * http://www.earlevel.com/main/2012/12/15/a-one-pole-filter/  
  * * http://www.dspguide.com/ch19/2.htm
  * * https://github.com/vitaliy-bobrov/js-rocks/blob/master/src/app/audio/effects/one-pole-filters.ts
+ * @category Component
  */
 export class OnePoleFilter extends ToneAudioNode<OnePoleFilterOptions> {