walkthrough typo

Author: zedeckj

docs/auto-examples/walkthrough.html

@@ -522,7 +522,7 @@
 </div>
 <br />
 <br /><p>Oh, but that was a blunder. Moves can be undone with <code class="xref py py-func docutils literal notranslate"><span class="pre">Board.undo()</span></code>, which returns
-the last <code class="xref py py-class docutils literal notranslate"><span class="pre">Move</span></code> applied. Getting the <code class="docutils literal notranslate"><span class="pre">str`</span></code> of a <code class="xref py py-class docutils literal notranslate"><span class="pre">Move</span></code> renders the move
+the last <code class="xref py py-class docutils literal notranslate"><span class="pre">Move</span></code> applied. Getting the <code class="docutils literal notranslate"><span class="pre">str</span></code> of a <code class="xref py py-class docutils literal notranslate"><span class="pre">Move</span></code> renders the move
 in UCI long algebraic notation.</p>
 <div class="highlight-Python notranslate"><div class="highlight"><pre><span></span><span class="nb">print</span><span class="p">(</span><span class="s2">&quot;Undoing &quot;</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">board</span><span class="o">.</span><span class="n">undo</span><span class="p">()))</span>
 <span class="n">board</span>
@@ -565,7 +565,7 @@
 <div class="sphx-glr-script-out highlight-none notranslate"><div class="highlight"><pre><span></span>False
 </pre></div>
 </div>
-<p class="sphx-glr-timing"><strong>Total running time of the script:</strong> (0 minutes 0.008 seconds)</p>
+<p class="sphx-glr-timing"><strong>Total running time of the script:</strong> (0 minutes 0.005 seconds)</p>
 <div class="sphx-glr-footer sphx-glr-footer-example docutils container" id="sphx-glr-download-auto-examples-walkthrough-py">
 <div class="sphx-glr-download sphx-glr-download-jupyter docutils container">
 <p><a class="reference download internal" download="" href="../_downloads/f91d9fd54f04fe335ffcd930016eef05/walkthrough.ipynb"><code class="xref download docutils literal notranslate"><span class="pre">Download</span> <span class="pre">Jupyter</span> <span class="pre">notebook:</span> <span class="pre">walkthrough.ipynb</span></code></a></p>