make nested parameters of README more readable

README.md

@@ -63,10 +63,29 @@ This will mark the `:log_entry` parameters hash and any subhash of it permitted.
 You can also use permit on nested parameters, like:
 
 ``` ruby
-params.permit(:name, {:emails => []}, :friends => [ :name, { :family => [ :name ], :hobbies => [] }])
+params.permit(:name, 
+              {
+                :emails => []
+              }, 
+              {
+                :friends => [ 
+                              :name, 
+                              { 
+                                :family => [ :name ], 
+                                :hobbies => [] 
+                              }
+                            ]
+              })
 ```
 
-This declaration whitelists the `name`, `emails` and `friends` attributes. It is expected that `emails` will be an array of permitted scalar values and that `friends` will be an array of resources with specific attributes : they should have a `name` attribute (any permitted scalar values allowed), a `hobbies` attribute as an array of permitted scalar values, and a `family` attribute which is restricted to having a `name` (any permitted scalar values allowed, too).
+**Here is what this does**
+
+* It whitelists the `name`, `emails` and `friends` attributes.
+* It is expected that `emails` will be an array of permitted scalar values.
+* It is expected that `friends` will be an array of resources with specific attributes:
+  * a `name` attribute (any permitted scalar values allowed)
+  * a `hobbies` attribute as an array of permitted scalar values
+  * a `family` attribute which is restricted to having a `name` (any permitted scalar values allowed, too).
 
 Thanks to Nick Kallen for the permit idea!