requirements and some general flow information in the README

CHANGELOG.md

@@ -0,0 +1,3 @@
+# Changelog
+
+Nothing yet, since there have not been any released to compare against. :)

README.md

@@ -1,3 +1,30 @@
 # Carcassonne Score keeping
 
 Score keeping software for [Carcassonne](https://boardgamegeek.com/boardgame/822/carcassonne) to facilitate statistical analysis of games.
+
+## Requirements
+
+* python 3 (tested under python 3.6.x)
+* numpy
+
+## Usage
+
+Before your first game you will need to initalize the sqlite database:
+
+```
+$ python create_database.py
+```
+
+### Score keeping
+
+Assuming the database has been initialized, you can run a game with:
+
+```
+$ python CarcassonneScore.py
+```
+
+This launches the interactive shell. Press `?` for a list of commands.
+
+### Analysis
+
+Sample analysis script will eventually be posted in `analysis/`.