docs tweak, updated docker img location

[danbrauer]

Summary

Docs tweak, updating docker img location

Related issues or links

N/A

Checklist

N/A Provide proof that this works (this makes reviews move faster). Please perform one or more of the following:

• Update/add unit or integration tests.
• Include a screenshot showing what the graph looked like before and after your changes.
• Include console log trace showing what happened before and after your changes.

N/A If you are changing a node or relationship:

• Update the schema and readme.

N/A If you are implementing a new intel module:

• Use the NodeSchema data model.