Update location of Pinry logo to the BitBucket repo

README.md

@@ -1,4 +1,4 @@
-# ![Pinry](https://github.com/overshard/pinry/raw/master/logo.png)
+# ![Pinry](https://bitbucket.org/pinry/pinry/raw/master/logo.png)
 
 The open-source core of Pinry, a tiling image board system for people who want
 to save, tag, and share images, videos and webpages in an easy to skim through