Value of Neo4j connector

The actual value "neo4j:testDB" isn't clear for beginners. I read some people asking what to put there (as I asked myself). I suggest the semantic "/path/to/" which is common in such situations. I suggest to put the default Neo4j graph database folder "Graph.db", I believe these changes will save new developers time and are more appropriate for Neo4j case.
Thanks to do the same thing for other stores if it has the same logic, namely, a database directory and not an SGBD like MySQL. To be general, we may also apply this notation for one-file databases like *.xls, so it becomes "/path/to/tutorial.xls".