Add additional comments/documentation.

Author: darrenklein

README.md

@@ -27,7 +27,7 @@ Documentation can be found at [https://hexdocs.pm/ex_aws_dynamo](https://hexdocs
 
 ### DynamoDB Local
 
-If you are running this module against a local version of DynamoDB, you'll want to make sure that you have installed the latest version, currently `1.11.477` (released 2019-02-06). You can find links to download the latest version [here](https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DynamoDBLocal.DownloadingAndRunning.html).
+If you are running this module against a local development instance of DynamoDB, you'll want to make sure that you have installed at least version `1.11.477` (released 2019-02-06). You can find links to download the latest version [here](https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DynamoDBLocal.DownloadingAndRunning.html).
 
 ## Configuration
 

test/lib/dynamo/integration_test.exs

@@ -1,13 +1,14 @@
 defmodule ExAws.DynamoIntegrationTest do
   use ExUnit.Case, async: true
 
-  ## These tests run against DynamoDb Local
+  ## These tests run against DynamoDB Local
   #
   # http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Tools.DynamoDBLocal.html
-  # In this way they can safely delete data and tables without risking actual data on Dynamo
+  # In this way they can safely delete data and tables without risking actual data on production Dynamo.
 
   # Only run the tests in this module if we can find a running
-  # instance of DDB Local on the port specified in config/test.exs
+  # instance of DDB Local on the port specified in config/ddb_local_test.exs
+  # See README for more information.
   case DDBLocal.try_connect() do
     :ok ->
       alias ExAws.Dynamo, warn: false