Update 15-02-01-PHPDoc.md

_posts/15-02-01-PHPDoc.md

@@ -66,7 +66,7 @@ Inside the class, the first method has a [@param] tag documenting the type, name
 being passed to the method. Additionally it has the [@return] and [@throws] tags for documenting the return type, and any exceptions that could be thrown respectively.
 
 The second and third methods are very similar and have a single [@param] tag as did the first method. The important
-difference between the second and third method's doc block is the inclusion/exclusion of the [@return] tag.
+difference between the second and third methods' doc block is the inclusion/exclusion of the [@return] tag.
 `@return void` explicitly informs us that there is no return; historically omitting the `@return void` statement also results in the same (no return) action.