Correct somewhat misleading instructions

Closes #127

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+  "[html]": {
+    "editor.defaultFormatter": "esbenp.prettier-vscode"
+  }
+}

lessons/_en/2.html

@@ -5,49 +5,66 @@
 ---
 
 <div class="row">
-<p>Let's take a look at another formatting convention: the header. Headers are
-  frequently used on websites, magazine articles, and notices, to draw attention
-  to a section. As their name implies, they act like titles or subtitles above
-  sections.</p>
+  <p>
+    Let's take a look at another formatting convention: the header. Headers are
+    frequently used on websites, magazine articles, and notices, to draw
+    attention to a section. As their name implies, they act like titles or
+    subtitles above sections.
+  </p>
 
-<p>There are six types of headers, in decreasing sizes:</p>
-<h1>This is header one</h1>
-<h2>This is header two</h2>
-<h3>This is header three</h3>
-<h4>This is header four</h4>
-<h5>This is header five</h5>
-<h6>This is header six</h6>
+  <p>There are six types of headers, in decreasing sizes:</p>
+  <h1>This is header one</h1>
+  <h2>This is header two</h2>
+  <h3>This is header three</h3>
+  <h4>This is header four</h4>
+  <h5>This is header five</h5>
+  <h6>This is header six</h6>
 
-<p>To make headers in Markdown, you preface the phrase with a hash mark (<code>#</code>). You
-place the same number of hash marks as the size of the header you want. For example,
-for a header one, you'd use one hash mark (<code># Header One</code>), while for
-a header three, you'd use three (<code>### Header Three</code>).</p>
+  <p>
+    To make headers in Markdown, you preface the phrase with a hash mark
+    (<code>#</code>). You place the same number of hash marks as the size of the
+    header you want. For example, for a header one, you'd use one hash mark
+    (<code># Header One</code>), while for a header three, you'd use three
+    (<code>### Header Three</code>).
+  </p>
 
-<p>For this next lesson, make each header the right size.</p>
+  <p>For this next lesson, make each header the right size.</p>
 
   <div class="col-md-5 scratchpad"></div>
-  <span class="help-tooltip icon-question" data-toggle="tooltip" data-original-title="Type your answers in the left box, and the resulting Markdown appears in the right box. When your answer is correct, you'll be taken to the next lesson"></span>
+  <span
+    class="help-tooltip icon-question"
+    data-toggle="tooltip"
+    data-original-title="Type your answers in the left box, and the resulting Markdown appears in the right box. When your answer is correct, you'll be taken to the next lesson"
+  ></span>
   <div class="col-md-5 renderpad"></div>
 </div>
 <button class="btn btn-default btn-skip">Skip</button>
 
 <div class="toBeRevealed">
   <div class="row">
-  <hr>
-  <p>All right!</p>
-  <p>It's up to you to decide when it's appropriate to use which header. In general,
-    headers one and six should be used sparingly.</p>
-  <p>You can't really make a header bold, but you can italicize certain words. In
-    the box below, make the first line a heading level four, and italicize the name of the book:</p>
+    <hr />
+    <p>All right!</p>
+    <p>
+      It's up to you to decide when it's appropriate to use which header. In
+      general, headers one and six should be used sparingly.
+    </p>
+    <p>
+      You can also mix and match inline styles within headers, such as
+      <em>italicizing</em> them. In the box below, make the first line a heading
+      level four, and italicize the name of the book:
+    </p>
     <div class="col-md-5 scratchpad"></div>
     <div class="col-md-5 renderpad"></div>
   </div>
   <button class="btn btn-default btn-skip">Skip</button>
 </div>
 
-
 <div class="toBeRevealed">
-  <hr>
+  <hr />
   <p>And that's all there is to making headers in Markdown.</p>
-  <a class="btn btn-lg btn-success" href="{{ site.data.tooltips.lesson_3[page.locale].href }}">On to the next lesson!</a>
+  <a
+    class="btn btn-lg btn-success"
+    href="{{ site.data.tooltips.lesson_3[page.locale].href }}"
+    >On to the next lesson!</a
+  >
 </div>