wip - Improve README

README.md

@@ -177,12 +177,22 @@ if UNLEASH.is_enabled? "AwesomeFeature", @unleash_context, true
 end
 ```
 
+Alternatively by using `if_enabled` you can send a code block to be executed as a parameter:
+
+```ruby
+UNLEASH.if_enabled "AwesomeFeature", @unleash_context, true do
+  puts "AwesomeFeature is enabled by default"
+end
+```
+
 #### Client methods
 
 Method Name | Description | Return Type |
 ---------|-------------|-------------|
 `is_enabled?` | Check if feature toggle is to be enabled or not. | Boolean |
 `enabled?` | Alias to the `is_enabled?` method. But more ruby idiomatic. | Boolean |
+`if_enabled` | Run a code block, if a feature is enabled. | `yield` |
+`get_variant` | Get variant for a given feature | Variant |
 `shutdown` | Save metrics to disk, flush metrics to server, and then kill ToggleFetcher and MetricsReporter threads. A safe shutdown. Not really useful in long running applications, like web applications. | nil |
 `shutdown!` | Kill ToggleFetcher and MetricsReporter threads immediately. | nil |