Minor edits and additions to Explode validation

Author: weierophinney

doc/book/validators/explode.md

@@ -1,21 +1,24 @@
 # Explode Validator
 
-`Zend\Validator\Explode` executes a validator for each item exploded.
+`Zend\Validator\Explode` executes a validator for each item exploded from an
+array.
 
 ## Supported options
 
 The following options are supported for `Zend\Validator\Explode`:
 
-- `valueDelimiter`: Defines the delimiter used to explode the value to an array. It defaults to `,`. If the given value is an array, this option isn't used.
+- `valueDelimiter`: Defines the delimiter used to explode values from an array.
+  It defaults to `,`. If the given value is an array, this option isn't used.
 - `validator`: Sets the validator that will be executed on each exploded item.
+  This may be a validator instance, or a validator service name.
 
 ## Basic usage
 
-To validate if every item in an array is into a certain haystack:
+To validate if every item in an array is in a specified haystack:
 
 ```php
 $inArrayValidator = new Zend\Validator\InArray([
-    'haystack' => [1, 2, 3, 4, 5, 6]
+    'haystack' => [1, 2, 3, 4, 5, 6],
 ]);
 
 $explodeValidator = new Zend\Validator\Explode([
@@ -28,11 +31,11 @@ $explodeValidator->isValid([1, 4, 6, 8]); // returns false
 
 ## Exploding strings
 
-To validate if every e-mail in an string is into a certain name list:
+To validate if every e-mail in a string is contained in a list of names:
 
 ```php
 $inEmailListValidator = new Zend\Validator\InArray([
-    'haystack' => ['[email protected]', '[email protected]', '[email protected]']
+    'haystack' => ['[email protected]', '[email protected]', '[email protected]'],
 ]);
 
 $explodeValidator = new Zend\Validator\Explode([