Use https for twitter

Author: Rachel Evans

_includes/post/sharing.html

@@ -1,6 +1,6 @@
 <div class="sharing">
   {% if site.twitter_tweet_button %}
-  <a href="http://twitter.com/share" class="twitter-share-button" data-url="{{ site.url }}{{ page.url }}" data-via="{{ site.twitter_user }}" data-counturl="{{ site.url }}{{ page.url }}" >Tweet</a>
+  <a href="https://twitter.com/share" class="twitter-share-button" data-url="{{ site.url }}{{ page.url }}" data-via="{{ site.twitter_user }}" data-counturl="{{ site.url }}{{ page.url }}" >Tweet</a>
   {% endif %}
   {% if site.google_plus_one %}
   <div class="g-plusone" data-size="{{ site.google_plus_one_size }}"></div>

html/lesson1/tutorial.md

@@ -326,7 +326,7 @@ You can use a special kind of tag to add notes to our page that the computer wil
 Add a share on twitter link along with your other sharing links.
 
 ```html
-<a href="http://twitter.com/home?status=I love owls! via @codebar">Share your love of owls on twitter</a>
+<a href="https://twitter.com/home?status=I love owls! via @codebar">Share your love of owls on twitter</a>
 ```
 -----
 This ends our first lesson, we hope you enjoyed it and learnt something. If you have some spare time how about going back through this tutorial and, by yourself, make some amendments. If there is something you did not understand or want to give us some feedback, please [send us an email.](mailto:[email protected])

html/lesson1/tutorial.pt.md

@@ -357,7 +357,7 @@ A diferença entre os links e link de envio de email (mailto link) é o conteúd
 Coloque um link para compartilhar no twitter junto com outros links de compartilhamento.
 
 ```html
-<a href="http://twitter.com/home?status=Eu amo corujas! via @by_codeba">Compartilhe seu amor por corujas no twitte</a>
+<a href="https://twitter.com/home?status=Eu amo corujas! via @by_codeba">Compartilhe seu amor por corujas no twitte</a>
 ```
 
 ---

html/lesson2/example.html

@@ -51,7 +51,7 @@ <h3>Owls:</h3>
            <a href="mailto:?subject=I love owls :: codebar">Email a friend</a>
         </li>
         <li>
-          <a href="http://twitter.com/home?status=I love owls! via @codebar">Share your love of owls on twitter</a>
+          <a href="https://twitter.com/home?status=I love owls! via @codebar">Share your love of owls on twitter</a>
         </li>
       </ul>
       </div>