Update imprint.html

Author: wslany

imprint.html

@@ -16,7 +16,7 @@
       <header>
         <h1>Catrobat</h1>
         <p>A visual programming language<br/> and set of creativity tools</p>
-        <p class="view"><a href="http://developer.catrobat.org/">Home</a></p>
+        <p class="view"><a href="https://developer.catrobat.org/">Home</a></p>
       </header>
 
       <section>