Update readme

README.md

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 # Basic Neural Network
 
-This is a very basic Java Neural Network library using EJML (Efficient Java Matrix Library) based on an example by Daniel Shiffman.
+This is a very basic Java Neural Network library based on the one built by Daniel Shiffman in [this](https://www.youtube.com/watch?v=XJ7HLz9VYz0&list=PLRqwX-V7Uu6aCibgK1PTWWu9by6XFdCfh) playlist using the [Efficient Java Matrix Library](https://www.ejml.org) (EJML).
+
+If you want to learn more about Neural Networks check out these YouTube-playlists:
+- [Neural Networks - The Nature of Code](https://www.youtube.com/watch?v=XJ7HLz9VYz0&list=PLRqwX-V7Uu6aCibgK1PTWWu9by6XFdCfh) by The Coding Train (Daniel Shiffman)
+- [Neural Networks](https://www.youtube.com/watch?v=aircAruvnKk&list=PLZHQObOWTQDNU6R1_67000Dx_ZCJB-3pi) by 3Blue1Brown
 
 ## Features
 
 - Neural Network with variable amounts of Inputs, hidden nodes and outputs
-- Only one hidden layer supported (yet)
-- Maven Dependency manager
-- ...
+- Two layered (hidden + output)
+- [Maven](https://maven.apache.org) Build-Management
+- [EJML](https://www.ejml.org) used for Matrix math
+
+## Examples (Usages)
+
+- [XOR solved with Basic Neural Network Library](https://github.com/kim-marcel/xor_with_nn)
 
 ## TODO
 
-- Add support for multy-layered Neural Net works
+- Add support for multiple layers