Update to match notebook file

Author: jerry-git

notebooks/beginner/html/classes.html

@@ -11777,7 +11777,7 @@
   }
 
   $( document ).ready(function(){
-    show=false;
+show=false;
     $('div.output').hide()
   });
 </script>
@@ -11827,7 +11827,7 @@ <h1 id="Classes"><a href="https://docs.python.org/3/tutorial/classes.html#a-firs
 <div class="inner_cell">
     <div class="input_area">
 <div class=" highlight hl-ipython3"><pre><span></span><span class="n">my_instance</span> <span class="o">=</span> <span class="n">MyFirstClass</span><span class="p">(</span><span class="s1">&#39;John Doe&#39;</span><span class="p">)</span>
-<span class="nb">print</span><span class="p">(</span><span class="s1">&#39;my_intance: </span><span class="si">{}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">my_instance</span><span class="p">))</span>
+<span class="nb">print</span><span class="p">(</span><span class="s1">&#39;my_instance: </span><span class="si">{}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">my_instance</span><span class="p">))</span>
 <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;type: </span><span class="si">{}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="nb">type</span><span class="p">(</span><span class="n">my_instance</span><span class="p">)))</span>
 <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;my_instance.name: </span><span class="si">{}</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">my_instance</span><span class="o">.</span><span class="n">name</span><span class="p">))</span>
 </pre></div>
@@ -11846,7 +11846,7 @@ <h1 id="Classes"><a href="https://docs.python.org/3/tutorial/classes.html#a-firs
 
 
 <div class="output_subarea output_stream output_stdout output_text">
-<pre>my_intance: &lt;__main__.MyFirstClass object at 0x106918550&gt;
+<pre>my_instance: &lt;__main__.MyFirstClass object at 0x106a18588&gt;
 type: &lt;class &#39;__main__.MyFirstClass&#39;&gt;
 my_instance.name: John Doe
 </pre>