README.md in ferver-1.3.0 vs README.md in ferver-1.3.1

@@ -2,11 +2,11 @@
 
 #### Ferver: A simple web app to serve files over HTTP packaged as a Ruby gem.
 
 [![Build Status](https://travis-ci.org/rob-murray/ferver.svg?branch=master)](https://travis-ci.org/rob-murray/ferver)
 [![Code Climate](https://codeclimate.com/github/rob-murray/ferver.png)](https://codeclimate.com/github/rob-murray/ferver)
-[![Coverage Status](https://coveralls.io/repos/rob-murray/ferver/badge.png)](https://coveralls.io/r/rob-murray/ferver)
+[![Coverage Status](https://coveralls.io/repos/rob-murray/ferver/badge.svg?branch=master&service=github)](https://coveralls.io/github/rob-murray/ferver?branch=master)
 [![Dependency Status](https://gemnasium.com/rob-murray/ferver.svg)](https://gemnasium.com/rob-murray/ferver)
 [![Gem Version](https://badge.fury.io/rb/ferver.svg)](http://badge.fury.io/rb/ferver)
 
 ### Description
 
@@ -56,10 +56,18 @@
 $ ferver -a
 ````
 
 > Note that zero size files will always be hidden.
 
+##### Configure webserver
+
+If required, you can configure the bind address or port number used by the webserver. By default this is `0.0.0.0` and port `4567` which means the server is accessible from outside your machine (if firewall permits). For example if you used the configuration below then it would only be accessible from local machine and on port `9999`.
+
+```bash
+$ ferver -p 9999 -b 127.0.0.1
+````
+
 ##### Command line help
 
 For a list of arguments just use the `--help` switch.
 
 ```bash
@@ -67,9 +75,11 @@
 ````
 
 ### Accessing files
 
 The **ferver** gem uses [Sinatra](http://www.sinatrarb.com/) and runs on default port configuration so just point your browser to `http://localhost:4567` to list the files.
+
+> If you are unable to connect then please check any firewall settings or the configured bind address or port number!
 
 #### HTML
 
 List available files in your browser.