docs(anki): add documentation for the parameters

src/spaced-repetition/anki.ts

@@ -10,15 +10,64 @@ export enum PerformanceResponse {
 const MILLISECONDS_PER_DAY = 24 * 60 * 60 * 1000;
 
 interface AnkiParameters {
+  /**
+   * The multiplier applied to the current interval when a card lapses
+   * (is forgotten).
+   * @default 0.5
+   */
   lapseInterval: number;
+  /**
+   * The interval (in days) assigned to a card when rated as `easy` during
+   * learning/relearning.
+   * @default 4
+   */
   easyInterval: number;
+  /**
+   * The multiplier applied to the interval when a review card is rated as
+   * `easy`.
+   * @default 1.3
+   */
   easyBonus: number;
+  /**
+   * The interval (in days) assigned to a card when it graduates from
+   * learning to review.
+   * @default 1
+   */
   graduatingInterval: number;
+  /**
+   * The minimum allowed ease factor for a card.
+   * @default 1.3
+   */
   minEaseFactor: number;
+  /**
+   * The amount by which the ease factor is decreased when a card is
+   * rated as `again`.
+   * @default 0.2
+   */
   easeFactorDecrement: number;
+  /**
+   * The amount by which the ease factor is increased when a card is
+   * rated as `easy`.
+   * @default 0.15
+   */
   easeFactorIncrement: number;
+  /**
+   * The multiplier applied to the current interval when a review card
+   * is rated as `hard`.
+   * @default 1.2
+   */
   hardIntervalMultiplier: number;
+  /**
+   * An array of step intervals (in minutes) for new cards in the learning
+   * phase.
+   * @default [1, 10]
+   */
   learningSteps: number[];
+  /**
+   * An array of step intervals (in minutes) for cards in the relearning
+   * phase.
+   * @default [10]
+   */
   relearningSteps: number[];
 }