website/index.txt in googlecharts-1.3.0 vs website/index.txt in googlecharts-1.3.1

@@ -143,11 +143,31 @@
               :stacked => false )
 </pre>
 
 !http://chart.apis.google.com/chart?cht=bvg&chs=300x200&chd=s:9UGo,Uo9C&chco=FF0000,00FF00(grouped bars)!
 
+*bar chart width and spacing*
 
+A bar chart can accept options to set the width of the bars, spacing between bars and spacing between bar groups. To set these, you can either provide a string, array or hash.
+
+The Google API sets these options in the order of width, spacing, and group spacing, with both spacing values being optional. So, if you provide a string or array, provide them in that order:
+
+<pre syntax="ruby">
+  Gchart.bar(:data => @data, :bar_width_and_spacing => '25,6') # width of 25, spacing of 6
+  Gchart.bar(:data => @data, :bar_width_and_spacing => '25,6,12') # width of 25, spacing of 6, group spacing of 12
+  Gchart.bar(:data => @data, :bar_width_and_spacing => [25,6]) # width of 25, spacing of 6
+  Gchart.bar(:data => @data, :bar_width_and_spacing => 25) # width of 25
+</pre>
+  
+The hash lets you set these values directly, with the Google default values set for any options you don't include:
+
+<pre syntax="ruby">
+  Gchart.bar(:data => @data, :bar_width_and_spacing => {:width => 19})
+  Gchart.bar(:data => @data, :bar_width_and_spacing => {:spacing => 10, :group_spacing => 12})
+</pre>
+
+
 *pie chart*
 
 <pre syntax="ruby">
   Gchart.pie(:data => [20, 35, 45])
 </pre>
@@ -451,5 +471,6 @@
 Comments are welcome. Send an email to "Matt Aimonetti":mailto:[e-mail]
 
 h3. Contributors
 
 "David Grandinetti":http://github.com/dbgrandi
+"Toby Sterrett":http://github.com/takeo
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