Just adding instructions

really complicated things

data/v2/build.py

@@ -1,3 +1,18 @@
+#  To build out the data you'll need to jump into the Django shell
+#
+#     $ python manage.py shell
+#
+#  and run the build script with
+#
+#     $ execfile('data/v2/build.py')
+#
+#  Each time the build script is run it will iterate over each table in the database,
+#  wipe it and rewrite each row using the data found in data/v2/csv.
+#  If you don't need all of the data just go into data/v2/build.py and
+#  comment out everything but what you need to build the tables you're looking for.
+#  This might be useful because some of the csv files are massive
+#  (pokemon_moves expecially) and it can take about 25 minutes to build everything.
+
 import csv
 import os
 from django.db import migrations, connection