Merge pull request facebookarchive#802 from sergeychernyshev/method-docs-typo

Wrong method call documentation

Author: yguedidi

docs/reference/GraphNode.md

@@ -162,7 +162,7 @@ Returns the `hometown` property for the user as a `Facebook\GraphNodes\GraphPage
 
 ### getSignificantOther()
 ```php
-public Facebook\GraphNodes\GraphUser|null getHometown()
+public Facebook\GraphNodes\GraphUser|null getSignificantOther()
 ```
 Returns the `significant_other` property for the user as a `Facebook\GraphNodes\GraphUser` if present.