IHF: get_dump doc added.

Author: dmitry-ivanov

README.md

@@ -30,7 +30,25 @@ Provides Laravel-specific and pure PHP helper functions.
 
 #### `get_dump`
 
-Lalala
+Returns nicely formatted string representation of the variable, using [Symfony VarDumper Component](http://symfony.com/doc/current/components/var_dumper/introduction.html) with all of it's benefits:
+```php
+$var = array(
+    'a simple string' => 'in an array of 5 elements',
+    'a float' => 1.0,
+    'an integer' => 1,
+    'a boolean' => true,
+    'an empty array' => array(),
+);
+$dump = get_dump($var);
+
+// array:5 [
+//     "a simple string" => "in an array of 5 elements"
+//     "a float" => 1.0
+//     "an integer" => 1
+//     "a boolean" => true
+//     "an empty array" => []
+// ]
+```
 
 ## Json