bpo-36766: Typos in docs and code comments (GH-13116)
diff --git a/Lib/idlelib/help.html b/Lib/idlelib/help.html
index 7e743e6..ba44331 100644
--- a/Lib/idlelib/help.html
+++ b/Lib/idlelib/help.html
@@ -721,7 +721,7 @@
<span class="pre">root</span> <span class="pre">=</span> <span class="pre">tk.Tk()</span></code> in standard Python and nothing appears. Enter the same
in IDLE and a tk window appears. In standard Python, one must also enter
<code class="docutils literal notranslate"><span class="pre">root.update()</span></code> to see the window. IDLE does the equivalent in the
-background, about 20 times a second, which is about every 50 milleseconds.
+background, about 20 times a second, which is about every 50 milliseconds.
Next enter <code class="docutils literal notranslate"><span class="pre">b</span> <span class="pre">=</span> <span class="pre">tk.Button(root,</span> <span class="pre">text='button');</span> <span class="pre">b.pack()</span></code>. Again,
nothing visibly changes in standard Python until one enters <code class="docutils literal notranslate"><span class="pre">root.update()</span></code>.</p>
<p>Most tkinter programs run <code class="docutils literal notranslate"><span class="pre">root.mainloop()</span></code>, which usually does not