update docs

Author: MeilCli

docs/ProgrammerWidget.js

@@ -151,6 +151,30 @@ <h2>
             </div>
         </div>
 
+        <br/>
+
+        <div class="row">
+            <div class="col-md-8 col-xs-12">
+                <h2>
+                    Customize List Height (to 300px)
+                </h2>
+                <p>
+                    In head:
+                </p>
+                <pre><code>// Replace Your Font Awesome CDN Code!
+&lt;link rel=&quot;stylesheet&quot; href=&quot;https://use.fontawesome.com/6c0013e839.css&quot; /&gt;
+&lt;link rel=&quot;stylesheet&quot; href=&quot;https://meilcli.github.io/ProgrammerWidget/ProgrammerWidget.css&quot; /&gt;
+&lt;script src=&quot;https://meilcli.github.io/ProgrammerWidget/ProgrammerWidget.js&quot; async defer&gt;&lt;/script&gt;</code></pre>
+                <p>
+                    In body:
+                </p>
+                <pre><code>&lt;div class=&quot;programmer-widget-qiita-with-items&quot; target-user=&quot;meilcli&quot; target-list-height=&quot;300px&quot;&gt;&lt;/div&gt;</code></pre>
+            </div>
+            <div class="col-md-4 col-xs-12">
+                <div class="programmer-widget-qiita-with-items" target-user="meilcli" target-list-height="300px"></div>
+            </div>
+        </div>
+
         <h2>
             Viiw Source Code On <a href="https://github.com/MeilCli/ProgrammerWidget">Github</a>
         </h2>