Added description, license, and readme.

LICENSE

@@ -0,0 +1,24 @@
+Copyright (c) 2012, Anuary (http://anuary.com/)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the Anuary (http://anuary.com/) nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL ANUARY BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

d3.crossfilter.ay-histogram.js

@@ -1,7 +1,24 @@
-/** 
- * param	string	name	Unique (per-DOM) name for the graph.
- * param	object	data	{group: (crossfilter group), dimension: (crossfilter dimension)}
- * param	object	options	{ (required) margin: [(int), (int)], (required for d3.linear.scale; defauls to day-length otherwise) bin_width: (int), (optional) x_axis_format: (function)}
+/**
+ * Histogram v0.0.1
+ * https://github.com/anuary/ay-histogram
+ *
+ * This function utilises d3.js (http://d3js.org/) and Crossfilter (http://square.github.com/crossfilter/)
+ * to create interdependent, interactive histograms. The beauty of the code comes from the flexibility of
+ * the input data. The crossfilter can have an arbitrary number of groups, or any size.
+ *
+ * Licensed under the BSD.
+ * https://github.com/anuary/ay-histogram/blob/master/LICENSE
+ *
+ * Author: Gajus Kuizinas <g.kuizinas@anuary.com>
+ * 
+ * param	string	name	Unique name of the SVG.
+ * param	object	data	{group: [crossfilter group], dimension: [crossfilter dimension]}
+ * param	object	options	{
+ *								margin: [(int) vertical, (int) horizontal], // required
+ *								bin_width: (int), // required for d3.linear.scale; defauls to day-length otherwise.
+ *							  	x_axis_format: (function) // optional. The horizontal axis tick format
+ *							  	tick_width: (int) // optional. The distance between each label on the horizontal axis.
+ *							}
  */
 var ay_histogram	= function(name, data, options)
 {