docs: Match docs on thumbs.js with the actual code in the xblock sdk

docs/xblock-tutorial/anatomy/javascript.rst

@@ -8,13 +8,13 @@ This section of the tutorial walks through the JavaScript file, `thumbs.js`_,
 that is part of the Thumbs XBlock in the XBlock SDK.
 
 If you completed the steps in :ref:`Build an XBlock Quick Start`, you can find
-this file locally at ``xblock_development/xblock-sdk/sample_xblocks/thumbs/static/js/source/thumbs.js``.
+this file locally at ``xblock_development/xblock-sdk/sample_xblocks/thumbs/static/js/src/thumbs.js``.
 
 In the XBlock JavaScript file, you define code that manages user interaction
 with the XBlock. The code is added to a :ref:`fragment <XBlock
 Fragments>`. 
 
-The XBlock’s JavaScript uses the runtime handler, and can use the ``children``
+The XBlock's JavaScript uses the runtime handler, and can use the ``children``
 and ``childMap`` functions as needed.
 
 The JavaScript references the XBlock :ref:`fields <XBlock Fields>`
@@ -29,7 +29,7 @@ Note the following details about the JavaScript file.
 * The function ``ThumbsBlock`` initializes the XBlock. A JavaScript function to
   initialize the XBlock is required.
 
-* The ``ThumbsBlock`` function maps to the contstructor in the :ref:`XBlock
+* The ``ThumbsBlock`` function maps to the constructor in the :ref:`XBlock
   Python file <The XBlock Python File>` and provides access to its methods and
   fields.
 
@@ -39,7 +39,7 @@ Note the following details about the JavaScript file.
 
     var handlerUrl = runtime.handlerUrl(element, 'vote');
   
-* The ``ThumbsBlock`` function includes the ``Post`` commands to increase the up
+* The ``ThumbsBlock`` function includes the ``POST`` commands to increase the up
   and down votes in the XBlock.
 
 The XBlock JavaScript code can also use the ``children`` and ``childMap``