fix changelog syntax

xabbuh · xabbuh · commit 653ac94c95a8 · 2015-03-02T08:59:59.000+01:00
Terminate the `tip` directive with a blank line.
diff --git a/changelog.rst b/changelog.rst
@@ -12,6 +12,7 @@ documentation.
 
     Do you also want to participate in the Symfony Documentation? Take a look
     at the ":doc:`/contributing/documentation/overview`" article.
+
 February, 2015
 --------------
 
