improved readme maybe

README.md

@@ -5,40 +5,46 @@ Abbr is a JavaScript library / function for finding, highlighting and annotating
 
 It needs no extra markup, all is done automatically. Just tell it what words you want to explain, and it'll do it.
 
-Abbr takes the following arguments:
+Abbr takes the following (default) arguments:
-
+
-    var opts = {
+```js
-        // selector in which to search for abbreviations
+{
-        where: 'body',
+	// selector in which to search for abbreviations
-        // abbreviation list - word: explanation
+	where: 'body',
-        words: {},
+	// abbreviation list - word: explanation
-        // Tag used to mark the matches
+	words: {},
-        tag: 'abbr',
+	// Tag used to mark the matches
-        // Attribute holding the "description" to be added to the tag
+	tag: 'abbr',
-        attr: 'title',
+	// Attribute holding the "description" to be added to the tag
-        // Case insensitive
+	attr: 'title',
-        ci: true,
+	// Case insensitive
-        // tags that shall not be traversed (in addition to opts.tag)
+	ci: true,
-        excluded: ['script', 'style', 'code', 'head', 'textarea', 'embed'],
+	// tags that shall not be traversed (in addition to opts.tag)
-        // Extra excluded (doesn't overwrite the original list)
+	excluded: ['script', 'style', 'code', 'head', 'textarea', 'embed'],
-        exclude: []
+	// Extra excluded (doesn't overwrite the original list)
-    };
+	exclude: []
+}
+```
 
 All config options are optional (though, obviously, you don't want to leave `words` empty).
 
 To run it, simply call:
 
-    abbr({
+```js
-        // Your options here
+abbr({
-    });
+	// Your options here
+});
+```
 
 For example:
 
-    abbr({
+```js
-        where: 'article',
+abbr({
-        words: {
+	where: 'article',
-            'NSA': 'National Spying Agency',
+	words: {
-            'Putin': 'Bear rider'
+		'NSA': 'National Spying Agency',
-        }
+		'Putin': 'Bear rider'
-    });
+	}
+});
+```