Fix example

README.md

@@ -3,6 +3,27 @@
 Logrus is a simple, opinionated structured logging package for Go which is
 completely API compatible with the standard library logger.
 
+Nicely color-coded in development (when a TTY is attached):
+
+[Imgur](http://i.imgur.com/PY7qMwd.png)
+
+With `log.Formatter = new(logrus.JSONFormatter)`:
+
+```json
+{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the
+ocean","size":"10","time":"2014-03-10 19:57:38.562264131 -0400 EDT"}
+{"level":"warning","msg":"The group's number increased
+tremendously!","number":122,"omg":true,"time":"2014-03-10 19:57:38.562471297
+-0400 EDT"}
+{"animal":"walrus","level":"info","msg":"A giant walrus
+appears!","size":"10","time":"2014-03-10 19:57:38.562500591 -0400 EDT"}
+{"animal":"walrus","level":"info","msg":"Tremendously sized cow enters the
+ocean.","size":"9","time":"2014-03-10 19:57:38.562527896 -0400 EDT"}
+{"level":"fatal","msg":"The ice
+breaks!","number":100,"omg":true,"time":"2014-03-10 19:57:38.562543128 -0400
+EDT"}
+```
+
 #### Fields
 
 Logrus encourages careful, structured logging. It encourages the use of logging