Make repo url explicit

Author: willirath

asv_bench/asv.conf.json

@@ -11,7 +11,7 @@
 
   // The URL or local path of the source code repository for the
   // project being benchmarked
-  "repo": "..",
+  "repo": "https://github.com/oceanparcels/parcels.git",
 
   // The Python project's subdirectory in your repo.  If missing or
   // the empty string, the project is assumed to be located at the root