added clear-PNG example to README

Author: GSI2013

README.textile

@@ -2,7 +2,12 @@ h1. Jekyll Image Encode
 
 This Jekyll plugin fetches images from the web and renders their according base64 codes.
 
-Be sure to know your reasons when using it.
+For example, a **1x1 clear PNG** would become:
+
+pre. <img src="data:image;base64, iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAAAXNSR0IArs4c
+6QAAAAxJREFUCNdj+P//PwAF/gL+3MxZ5wAAAABJRU5ErkJggg== " />
+
+Be sure to know your reasons when using this plugin.
 
 
 h2. Installation
@@ -30,4 +35,4 @@ pre. <img src="{% base64 http://example.org/image.png %}" />
 
 h2. License
 
-Jekyll Image Embed is released under the "MIT License":http://www.opensource.org/licenses/MIT.
+Jekyll Image Embed is released under the "MIT License":http://www.opensource.org/licenses/MIT.

jekyll_image_encode.gemspec

@@ -5,7 +5,7 @@ Gem::Specification.new do |s|
   s.summary     = "Jekyll Image Encode"
   s.description = "Jekyll tag that renders base64 codes of images fetched from the web"
   s.authors     = ["GSI"]
-  s.email       = '2013@groovy-skills.com'
+  s.email       = 'rubygems.org@groovy-skills.com'
   s.files       = Dir.glob('lib/**/*') # `git ls-files`.split($/)
   s.homepage    = 'https://github.com/GSI/' + s.name
   s.license     = 'MIT'