Update readme for list via post

Author: Admin

README.md

@@ -256,27 +256,13 @@ The above "errors" are optional and appear only for validation errors while "mes
 #### III.2 Get resource
 **GET** /{resource}/{identifier}?withRelations[]=has_manyRelation&withRelations[]=has_oneRelation&withRelationsCount[]=has_manyRelation&withRelationsExistence[]=has_manyRelation
 
-**POST** /{resource}/{identifier}
-
 headers:
 
       Authorization: Bearer ... // if needed. not coded in this lib
       
       Accept: application/json
 
-      Content-Type: application/json OR application/x-www-form-urlencoded // for POST
-
-Body for POST:
-
-    {"withRelations":["has_manyRelation","has_oneRelation"],"withRelationsCount":["has_manyRelation"],"withRelationsExistence":["has_manyRelation"]}
-
-OR
-
-    withRelations[]=has_manyRelation&withRelations[]=has_oneRelation&withRelationsCount[]=has_manyRelation&withRelationsExistence[]=has_manyRelation
-
-Use **POST** requests if GET returns this error message: **Request Header Or Cookie Too Large**
-
-or if the filters contain **sensitive data**
+Use **POST** LIST requests if the identifier contains **sensitive data**
 
 Json Response: