Add an example of csv to be imported.

Author: clems4ever

cmd/importer-csv/example.csv

@@ -0,0 +1,9 @@
+employee,James,work_at,office,New York
+employee,Paul,work_at,office,Paris
+employee,Jean,work_at,office,Paris
+employee,James,has,email,[email protected]
+employee,Paul,has,email,[email protected]
+employee,Jean,has,email,[email protected]
+employee,Paul,is_in,team,team1
+employee,James,is_in,team,team1
+employee,Jean,is_in,team,team2