Not much

templates/doc.md

@@ -56,4 +56,7 @@ Here's an example of a graph `(A-B C)`:
       1: {'position': {'x': 1, 'y': 0, 'z': 0}, 'vop': 0},
       2: {'position': {'x': 2, 'y': 0, 'z': 0}, 'vop': 10}}}
 
+## ABP
+
+The underlying graph library is based on Anders' and Briegel's method. Full docs for the Python library are [here](https://peteshadbolt.co.uk/static/abp/index.html).