readme.md in rubrowser-0.1.2 vs readme.md in rubrowser-0.1.3

@@ -21,9 +21,15 @@
 ```
 gem install rubrowser
 rubrowser /path/to/project/or/file
 ```
 
+or you can just visualize current directory
+
+```
+rubrowser
+```
+
 it'll analyze the project and open port 9000, so you can access the graph from `localhost:9000`
 
 ## Features
 
 * interactive graph, you can pull any node to fix it to some position