fixed invalid relationship path

Author: Philipp Marien

docs/json-api-server/index.md

@@ -21,14 +21,14 @@
 |-------------|----------------------------------------------|------------------------------------------------------------------------------------------------------------------|
 | GET         | /{type}                                      | The server creates a fetch request and calls method "findResources" of the request handler.                      |
 | GET         | /{type}/{id}                                 | The server creates a fetch request and calls method "findResource" of the request handler.                       |
-| GET         | /{type}/{id}/relationship/{relationshipName} | The server creates a fetch request and calls method "findRelationship" of the request handler.                   |
+| GET         | /{type}/{id}/relationships/{relationshipName} | The server creates a fetch request and calls method "findRelationship" of the request handler.                   |
 | GET         | /{type}/{id}/{relationshipName}              | The server creates a fetch request and calls method "findRelationship" of the request handler.                   |
 | POST        | /{type}                                      | The server creates a save request and calls method "saveResource" of the request handler.                        |
 | PATCH       | /{type}/{id}                                 | The server creates a save request and calls method "saveResource" of the request handler.                        |
 | DELETE      | /{type}/{id}                                 | The server creates a simple JSON API request and calls method "deleteResource" of the request handler.           |
-| POST        | /{type}/{id}/relationship/{relationshipName} | The server creates a relationship modification request and calls method "modifyResource" of the request handler. |
-| PATCH       | /{type}/{id}/relationship/{relationshipName} | The server creates a relationship modification request and calls method "modifyResource" of the request handler. |
-| DELETE      | /{type}/{id}/relationship/{relationshipName} | The server creates a relationship modification request and calls method "modifyResource" of the request handler. |
+| POST        | /{type}/{id}/relationships/{relationshipName} | The server creates a relationship modification request and calls method "modifyResource" of the request handler. |
+| PATCH       | /{type}/{id}/relationships/{relationshipName} | The server creates a relationship modification request and calls method "modifyResource" of the request handler. |
+| DELETE      | /{type}/{id}/relationships/{relationshipName} | The server creates a relationship modification request and calls method "modifyResource" of the request handler. |
 
 ## Usage