Converted " the the " => " the ", see phetsims/chipper#704

accessibility/accessibility-documentation.html

@@ -137,7 +137,12 @@ <h1>Accessible Content in Scenery</h1>
     <h2>The Parallel DOM</h2>
 
     <p>
-      To accomplish this, we generated a parallel HTML structure that sits on top of the Scenery visual element.  Any visual node in the simulation can be represented in this parallel HTML DOM.  In this way, both the browser and assistive technologies have access to the the accessible representations of the elements on screen.  Since the DOM is written in HTML, any user can navigate to the various elements in the browser with a keyboard or assistive technology. This could include using 'tab' or any other keys that are handled by the screen reader that moves focus to various landmarks defined in the document.
+      To accomplish this, we generated a parallel HTML structure that sits on top of the Scenery visual element. Any
+      visual node in the simulation can be represented in this parallel HTML DOM. In this way, both the browser and
+      assistive technologies have access to the accessible representations of the elements on screen. Since the DOM is
+      written in HTML, any user can navigate to the various elements in the browser with a keyboard or assistive
+      technology. This could include using 'tab' or any other keys that are handled by the screen reader that moves
+      focus to various landmarks defined in the document.
     </p>
 
     <p>

accessibility/accessibility-script.js

@@ -1,7 +1,7 @@
 // Copyright 2015, University of Colorado Boulder
 
 /**
- * Some scripting for the the prototype parallel DOM.  This mimics some dynamic content for the parallel DOM that would
+ * Some scripting for the prototype parallel DOM.  This mimics some dynamic content for the parallel DOM that would
  * occur in a simulation to test complex tab navigation and aria-live.
  *
  * @author Jesse Greenberg

js/accessibility/Accessibility.js

@@ -1035,7 +1035,7 @@ define( function( require ) {
         /**
          * Set the inner content for the primary sibling of the AccessiblePeers of this node. Will be set as textContent
          * unless content is html which uses exclusively formatting tags. A node with inner content cannot
-         * have accessible descendants because this content will override the the HTML of descendants of this node.
+         * have accessible descendants because this content will override the HTML of descendants of this node.
          *
          * @param {string|null} content
          * @public

js/accessibility/FocusHighlightFromNode.js

@@ -46,7 +46,7 @@ define( function( require ) {
 
     FocusHighlightPath.call( this, null, options );
 
-    // @private - from options, will override line width calculations based on the the node's size
+    // @private - from options, will override line width calculations based on the node's size
     this.outerLineWidth = options.outerLineWidth;
     this.innerLineWidth = options.innerLineWidth;