Update html to match notebook file

Author: jerry-git

notebooks/beginner/html/strings.html

@@ -11777,7 +11777,7 @@
  }
 
  $( document ).ready(function(){
- show=false;
+show=false;
  $('div.output').hide()
  });
 </script>
@@ -12021,7 +12021,7 @@ <h2 id="str.replace()"><code>str.replace()</code><a class="anchor-link" href="#s
 <div class="prompt input_prompt">In&nbsp;[7]:</div>
 <div class="inner_cell">
  <div class="input_area">
-<div class=" highlight hl-ipython3"><pre><span></span><span class="n">my_string</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;a&#39;</span><span class="p">,</span> <span class="s1">&#39;?&#39;</span><span class="p">)</span>
+<div class=" highlight hl-ipython3"><pre><span></span><span class="n">my_string</span> <span class="o">=</span> <span class="n">my_string</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;a&#39;</span><span class="p">,</span> <span class="s1">&#39;?&#39;</span><span class="p">)</span>
 <span class="nb">print</span><span class="p">(</span><span class="n">my_string</span><span class="p">)</span>
 </pre></div>
 
@@ -12039,7 +12039,7 @@ <h2 id="str.replace()"><code>str.replace()</code><a class="anchor-link" href="#s
 
 
 <div class="output_subarea output_stream output_stdout output_text">
-<pre>Python is my favorite programming language!
+<pre>Python is my f?vorite progr?mming l?ngu?ge!
 </pre>
 </div>
 </div>
@@ -12071,7 +12071,7 @@ <h2 id="str.replace()"><code>str.replace()</code><a class="anchor-link" href="#s
 
 
 <div class="output_subarea output_stream output_stdout output_text">
-<pre>Python will be my favorite programming language!
+<pre>Python will be my f?vorite progr?mming l?ngu?ge!
 </pre>
 </div>
 </div>