Bump beta version to 2.0.0-beta.3 and update changelog.

Author: microbit-carlos

CHANGELOG

@@ -1,3 +1,14 @@
+2.0.0-beta.3
+------------
+* Added WebUSB Partial Flashing (#217) (#222) (#224) (#225) (#227) (#228) (#229)
+* Improved WebUSB error handling (#211)
+* WebUSB buttons are always displayed (#226)
+* Help page updated with the new features (#199)
+* Added Polish translation and updated Spanish translation (#206) (#210) (#230)
+* Language can now be set via URL (#212)
+* Accessibility improvements (#215) (#219)
+* General UI improvements (#213)
+
 2.0.0-beta.2
 ------------
 * Updated the Load/Save modal UI (#203) (#204)

editor.html

@@ -78,7 +78,7 @@
         </script>
         <script type="application/javascript">
             // VERSION INFORMATION
-            EDITOR_VERSION = "2.0.0-beta.2";
+            EDITOR_VERSION = "2.0.0-beta.3";
             UPY_VERSION = "1.0.1";
         </script>
         <script id="files-template" type="x-tmpl-mustache">