Update docs

Author: andreekeberg

docs/classifier.md

@@ -45,4 +45,4 @@ Return an array of one or more Prediction instances
 | --- | --- | --- | --- |
 | input | <code>string</code> |  | Input string to make a prediction from |
 | [maxMatches] | <code>int</code> | <code>1</code> | Maximum number of predictions to return |
-| [minimumConfidence] | <code>float</code> | <code></code> | Minimum confidence required to include a prediction |
+| [minimumConfidence] | <code>float</code> | <code>null</code> | Minimum confidence required to include a prediction |

src/classifier.js

@@ -93,8 +93,8 @@ class Classifier {
      * Return an array of one or more Prediction instances
      *
      * @param {string} input - Input string to make a prediction from
-     * @param {int} [maxMatches] Maximum number of predictions to return
-     * @param {float} [minimumConfidence] Minimum confidence required to include a prediction
+     * @param {int} [maxMatches=1] Maximum number of predictions to return
+     * @param {float} [minimumConfidence=null] Minimum confidence required to include a prediction
      * @return {Array}
      */
     predict(input, maxMatches = 1, minimumConfidence = null) {