Document how to access the Neo4j instance

[sagehrke]

Add to Monarch app documentation directions on how to access the Neo4j instance. Thank you!

[kevinschaper]

Ideally we can make it "just work" - but at the moment the requirement is that it needs to be an http connection rather than https, the connection url is bolt://neo4j-bolt.monarchinitiative.org, and finally no authentication

[sagehrke]

@kevinschaper should we update this ticket to just "fix neo4j access"?

[kevinschaper]

We might be able to link from the UI to a working neo4j connection.

This works for me, but takes ~10-15 seconds of not looking like it's working, and then eventually connects:

http://neo4j.monarchinitiative.org/browser/?preselectAuthMethod=NO_AUTH&dbms=bolt://neo4j-bolt.monarchinitiative.org&cmd=server&arg=connect