docs(friedland): add chapter 9 exhibit IV, V, VI and complete exhibits I-III - #1197

docs(friedland): add chapter 9 exhibit IV, V, VI and complete exhibits I-III#1197

henrydingliu merged 36 commits into

maincasact/chainladder-python:mainfrom

friedland/chapter-9-exhibit-ivcasact/chainladder-python:friedland/chapter-9-exhibit-ivCopy head branch name to clipboard