README.md in guard-livereload-2.4.0 vs README.md in guard-livereload-2.5.0

@@ -22,21 +22,21 @@
 
 Add it to your Gemfile (inside development group):
 
 ``` ruby
 group :development do
-  gem 'guard-livereload', require: false
+  gem 'guard-livereload', '~> 2.4', require: false
 end
 ```
 
 Add guard definition to your Guardfile by running this command:
 
 ``` bash
 $ guard init livereload
 ```
 
-Use [rack-livereload](https://github.com/johnbintz/rack-livereload) or install [LiveReload Safari/Chrome extension](http://feedback.livereload.com/knowledgebase/articles/86242-how-do-i-install-and-use-the-browser-extensions-)
+And to get everything running in the browser, use [rack-livereload](https://github.com/johnbintz/rack-livereload) or install the [LiveReload Safari/Chrome/Firefox extension](http://livereload.com/extensions#installing-sections).
 
 ## Usage
 
 Please read [Guard usage doc](https://github.com/guard/guard#readme) and [rack-livereload how it works readme section](https://github.com/johnbintz/rack-livereload#readme) or [LiveReload extension usage doc](https://github.com/mockko/livereload/blob/master/README-old.md) from version 1.x
 
@@ -73,13 +73,29 @@
 host: '127.3.3.1'     # default '0.0.0.0'
 port: '12345'         # default '35729'
 apply_css_live: false # default true
 override_url: false   # default false
 grace_period: 0.5     # default 0 (seconds)
+js_template: './my_livereload.js.erb' # default is livereload.js.erb from gem
 ```
 
+Additional custom JS template options (see livereload.js.erb for details):
+``` ruby
+js_apple_webkit_extra_wait_time: 50 # default is 5 (see issue #123)
+js_default_extra_wait_time: 100 # default is 200
+```
+
+
 `notify` uses Guard's [system notifications](https://github.com/guard/guard/wiki/System-notifications).
 See [LiveReload configuration doc](https://github.com/mockko/livereload/blob/master/README-old.md) from version 1.x for more info about other options.
+
+## Troubleshooting
+
+##### 1. "hw.ncpu" is an unknown key.
+
+Solution: just upgrade the `listen` gem to '3.x' (Listen is used by Guard).
+
+(Details: https://github.com/guard/guard-livereload/issues/134)
 
 ## Development
 
 * Source hosted at [GitHub](https://github.com/guard/guard-livereload).
 * Report issues and feature requests to [GitHub Issues](https://github.com/guard/guard-livereload/issues).