2 docs fixes.

Fix 404 and extra slash in url

(cherry picked from commit 56263c4)

docs/_posts/2014-03-28-the-road-to-1.0.md

@@ -55,4 +55,3 @@ There are several other things I listed on [our projects page][projects] that we
 [v0.10]: http://facebook.github.io/react/blog/2014/03/21/react-v0.10.html
 [pitofsuccess]: http://blog.codinghorror.com/falling-into-the-pit-of-success/
 [projects]: https://github.com/facebook/react/wiki/Projects
-

docs/blog/index.html

@@ -20,7 +20,7 @@ <h1><a href="/react{{ page.url }}">{{ page.title }}</a></h1>
 
     <div class="pagination">
       {% if paginator.previous_page %}
-        <a href="/react/{{ paginator.previous_page_path }}" class="previous">
+        <a href="/react{{ paginator.previous_page_path }}" class="previous">
           &laquo; Previous Page
         </a>
       {% endif %}