Add PyPI version badge to docs. Closes #3023

docs/index.md

 <p class="badges" height=20px>
-<iframe src="http://ghbtns.com/github-btn.html?user=tomchristie&amp;repo=django-rest-framework&amp;type=watch&amp;count=true" class="github-star-button" allowtransparency="true" frameborder="0" scrolling="0" width="110px" height="20px"></iframe>
+    <iframe src="http://ghbtns.com/github-btn.html?user=tomchristie&amp;repo=django-rest-framework&amp;type=watch&amp;count=true" class="github-star-button" allowtransparency="true" frameborder="0" scrolling="0" width="110px" height="20px"></iframe>
 
-<a href="https://twitter.com/share" class="twitter-share-button" data-url="django-rest-framework.org" data-text="Checking out the totally awesome Django REST framework! http://www.django-rest-framework.org" data-count="none"></a>
-<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="http://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>
+    <a href="https://twitter.com/share" class="twitter-share-button" data-url="django-rest-framework.org" data-text="Checking out the totally awesome Django REST framework! http://www.django-rest-framework.org" data-count="none"></a>
+    <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="http://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>
 
-<img src="https://secure.travis-ci.org/tomchristie/django-rest-framework.svg?branch=master" class="travis-build-image">
+    <a href="http://travis-ci.org/tomchristie/django-rest-framework?branch=master">
+        <img src="https://secure.travis-ci.org/tomchristie/django-rest-framework.svg?branch=master" class="status-badge">
+    </a>
+
+    <a href="https://pypi.python.org/pypi/djangorestframework">
+        <img src="https://img.shields.io/pypi/v/djangorestframework.svg" class="status-badge">
+    </a>
 </p>
 
 ---
@@ -248,8 +254,6 @@ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-[travis]: http://travis-ci.org/tomchristie/django-rest-framework?branch=master
-[travis-build-image]: https://secure.travis-ci.org/tomchristie/django-rest-framework.png?branch=master
 [mozilla]: http://www.mozilla.org/en-US/about/
 [eventbrite]: https://www.eventbrite.co.uk/about/
 [markdown]: http://pypi.python.org/pypi/Markdown/

docs_theme/css/default.css

@@ -44,8 +44,8 @@ body.index-page #main-content iframe.twitter-share-button {
     margin-right: 8px;
 }
 
-/* Travis CI badge */
-body.index-page #main-content img.travis-build-image {
+/* Travis CI and PyPI badge */
+body.index-page #main-content img.status-badge {
     float: right;
     margin-right: 8px;
     margin-top: -11px;