Update ts/a11y/explorer/KeyExplorer.ts

Co-authored-by: Volker Sorge <v.sorge@mathjax.org>

Author: dpvc

ts/a11y/explorer/KeyExplorer.ts

@@ -1948,7 +1948,7 @@ export class SpeechExplorer
 
   /**
    * Prevent clicks in mjx-html nodes from propagating, so clicks in
-   * HTML input elements or other selectable nodes will not cause
+   * HTML input elements or other selectable nodes will stop
    * the explorer from processing the click.
    */
   protected addHtmlEvents() {