Update the documentation for accessibilityIncrements (#441)

Author: appfr3d

package/typings/index.d.ts

@@ -145,10 +145,10 @@ export interface SliderProps
   accessibilityUnits?: string;
 
   /**
-   * A string of one or more words to be announced by the screen reader.
-   * Otherwise, it will announce the value as a percentage.
-   * Requires passing a value to `accessibilityIncrements` to work correctly.
-   * Should be a plural word, as singular units will be handled.
+   * An array of values that represent the different increments displayed
+   * by the slider. All the values passed into this prop must be strings.
+   * Requires passing a value to `accessibilityUnits` to work correctly.
+   * The number of elements must be the same as `maximumValue`.
    */
   accessibilityIncrements?: Array<string>;