Documentation: Add configuration instructions

[nhooey]

The documentation could use some configuration instructions, like defining the host and port of the ArangoDB instance.

Having configuration for timeouts would be great as well, including defaults.

[darkfrog26]

I agree this should be documented better, but this is already configurable: https://github.com/outr/scarango/blob/master/driver/src/main/scala/com/outr/arango/core/ArangoDBConfig.scala#L10

When you instantiate the Graph you can optionally supply your own ArangoDBConfig, or you can just define those configuration items via Profig. In the latter case, you can define a config.json file like:

{
  "arangodb": {
    "username": "root",
    "password": "password"
  }
}

Or you can specify via environment variables:
ARANGODB_USERNAME=root
ARANGODB_PASSWORD=password
Or you can pass in command-line arguments:
myApp -arangodb.username=root -arangodb.password=password

If you're up to creating a PR to add this to the README that would certainly be welcome.

[darkfrog26]

@nhooey I'm closing this for lack of response. Please open a new ticket if you need further assistance.

[nhooey]

The documentation still doesn't have configuration instructions.
I'm not sure why it makes sense to close the ticket because I didn't respond.

[darkfrog26]

That's fair.