README.md in caracal-0.1.3 vs README.md in caracal-0.1.4

@@ -302,11 +302,11 @@
 
 ### Fonts
 
 Fonts are added to the font table file by calling the `font` method and passing the name of the font.  
 
-*At present, Caracal only supports declaring the primary font name.
+*At present, Caracal only supports declaring the primary font name.*
 
 ```ruby
 docx.font do
   name 'Droid Serif'
 end
@@ -512,18 +512,24 @@
 
 *Caracal will automatically embed the image in the Word document.*
 
 ```ruby
 docx.img image_url('example.png') do
+  data    raw_data  # sets the file data directly instead of opening the url
   width   396       # sets the image width. units specified in pixels.
   height  216       # sets the image height. units specified in pixels.
   align   :right    # controls the justification of the image. default is :left.
   top     10        # sets the top margin. units specified in pixels.
   bottom  10        # sets the bottom margin. units specified in pixels.
   left    10        # sets the left margin. units specified in pixels.
   right   10        # sets the right margin. units specified in pixels.
 end
 ```
+
+*Note: If you provide the image data, you should still supply a URL. I know this 
+is a bit hacky, but it allows the library to key the image more effectively and 
+Caracal needs a file extension to apply to the renamed media file. This seemed 
+the simplest solution to both problems.*
 
 
 ### Tables
 
 Tables can be added using the `table` method.  The method accepts several optional paramters to control the layout and style of the table cells.