Add a few docstrings.

scikits/image/__init__.py

@@ -1,3 +1,6 @@
+"""Image Processing SciKit (Toolbox for SciPy)"""
+
+
 import os.path
 
 data_dir = os.path.join(os.path.dirname(__file__), 'data')

scikits/image/io/__init__.py

@@ -1,3 +1,6 @@
+"""Utilities to read and write images in various formats."""
+
+
 from pil_imread import *
 from sift import *
 from collection import *

scikits/image/io/collection.py

@@ -1,4 +1,4 @@
-"""Read and write image files."""
+"""Data structures to hold collections of images, with optional caching."""
 
 from __future__ import with_statement