Please add references

[danklotz]

I think that some references are missing. Given that the graph is distributed under apache license, I think there are to key points:

1. References of the authos/concepts (Who invented what, what are good further reading materials etc.)
2. Pictures/Graphs used within the mindmap (e.g. colah, wiki?)

nice idea!

best greeetings, Daniel

[dformoso]

Great idea. I'll make some to time to add references.

[dformoso]

Hi danklotz, I've just added a few references. It's not a comprehensive list, but it's a start.

[danklotz]

great :)