add link to the analysis code

README.md

@@ -1,3 +1,5 @@
 # Zebramaze
 
-Data for the upcoming paper about the spatial learning in juvenile zebrafish
+Data for the upcoming paper about the spatial learning in juvenile zebrafish.
+
+Analysis is available at [BitBucket](https://bitbucket.org/mpinbaierlab/zebramaze/src/master/).