Add documentation to underscore

underscore/underscore.go

@@ -1,9 +1,27 @@
 /*
 Package underscore contains the source for the underscore utility-belt library for JavaScript.
 
+	import (
+		_ "github.com/robertkrimen/otto/underscore"
+	)
+	// Every Otto runtime will now include underscore
+
 http://underscorejs.org
 
 https://github.com/documentcloud/underscore
+
+By importing this package, you'll automatically load underscore every time you create a new Otto runtime.
+
+To prevent this behavior, you can do the following:
+
+	import (
+		"github.com/robertkrimen/otto/underscore"
+	)
+
+	func init() {
+		underscore.Disable()
+	}
+
 */
 package underscore
 
@@ -13,10 +31,12 @@ import (
 
 var entry *registry.Entry = registry.Register(Source())
 
+// Enable underscore runtime inclusion.
 func Enable() {
 	entry.Enable()
 }
 
+// Disable underscore runtime inclusion.
 func Disable() {
 	entry.Disable()
 }