Fix scroll-down-arrow href and add it on each page

Author: nicolasstucki

docs/_includes/features.html

@@ -105,5 +105,12 @@ <h1 id="i-have-more-questions">I have more questions!</h1>
             <p>That’s great! We have more details on the <a href="{{ site.baseurl }}/docs">docs</a> and please join our <a href="https://gitter.im/lampepfl/dotty">Gitter channel</a>!</p>
         </div>
     </div>
+    <div class="centered-subtitle">
+        <a href="#why-dotty">
+            <i id="scroll-down-arrow" class="animated infinite pulse material-icons">
+                expand_more
+            </i>
+        </a>
+    </div>
 </div>
 

docs/_includes/getting-started.html

@@ -15,6 +15,12 @@ <h1 id="getting-started-with-a-project">Create a Dotty Project</h1>
         <pre class="sourceCode bright"><code>sbt new <a href="https://github.com/lampepfl/dotty-cross.g8">lampepfl/dotty-cross.g8</a></code></pre>
 
         <p>For documentation see the <a href="https://github.com/lampepfl/dotty-example-project">Dotty Example Project</a>.</p>
-
+    </div>
+    <div class="centered-subtitle">
+        <a href="#so-features">
+            <i id="scroll-down-arrow" class="animated infinite pulse material-icons">
+                expand_more
+            </i>
+        </a>
     </div>
 </div>

docs/_includes/logo-page.html

@@ -83,7 +83,7 @@
         <div class="centered-subtitle">
             <h1 id="dotty">Dotty</h1>
             <p>A next generation compiler for Scala</p>
-            <a href="#why-dotty">
+            <a href="#getting-started">
                 <i id="scroll-down-arrow" class="animated infinite pulse material-icons">
                     expand_more
                 </i>