Add missing word

@@ -37,8 +37,9 @@ func main() {
     // value from a map indicates if the key was present
     // in the map. This can be used to disambiguate
     // between missing keys and keys with zero values
-    // like `0` or `""`. Here we didn't the value itself, so
-    // we ignored it with the _blank identifier_ `_`.
+    // like `0` or `""`. Here we didn't need the value
+    // itself, so we ignored it with the _blank identifier_
+    // `_`.
     _, prs := m["k2"]
     fmt.Println("prs:", prs)
 

@@ -1,2 +1,2 @@
-ee96724fc32ee253ba2a5390d66d6880d7fdd28f
-Z2ORjMdW_u
+2895d63b87f88ab374256c12dd1539cf7b070b77
+E6cGoiKqka

@@ -40,7 +40,7 @@
             
           </td>
           <td class="code leading">
-	        <a href="http://play.golang.org/p/Z2ORjMdW_u"><img title="Run code" src="play.png" class="run" /></a>
+	        <a href="http://play.golang.org/p/E6cGoiKqka"><img title="Run code" src="play.png" class="run" /></a>
             <div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
 </pre></div>
 
@@ -159,15 +159,13 @@ a map.</p>
         
         <tr>
           <td class="docs">
-            <p> Above we didn&rsquo;t
-need the index, so we ignored it with the
-<em>blank identifier</em> <code>_</code>.
-The optional second return value when getting a
+            <p>The optional second return value when getting a
 value from a map indicates if the key was present
 in the map. This can be used to disambiguate
 between missing keys and keys with zero values
-like <code>0</code> or <code>&quot;&quot;</code>. Here we didn&rsquo;t the value itself, so
-we ignored it with the <em>blank identifier</em> <code>_</code>.</p>
+like <code>0</code> or <code>&quot;&quot;</code>. Here we didn&rsquo;t need the value
+itself, so we ignored it with the <em>blank identifier</em>
+<code>_</code>.</p>
 
           </td>
           <td class="code leading">