Update NEWS and UPGRADING

Author: Yasuo Ohgaki

NEWS

@@ -57,7 +57,10 @@ PHP                                                                        NEWS
 - Session:
   . Fixed bug #72940 (SID always return "name=ID", even if session
     cookie exist). (Yasuo)
-  . Implemented session_gc() and session_create_id() functions. (Yasuo)
+  . Implemented session_gc() (Yasuo)
+    https://wiki.php.net/rfc/session-create-id
+  . Implemented session_create_id() (Yasuo)
+    https://wiki.php.net/rfc/session-gc
 
 - SimpleXML:
   . Fixed bug #72971 (SimpleXML isset/unset do not respect namespace). (Nikita)

UPGRADING

@@ -238,7 +238,9 @@ PHP 7.1 UPGRADE NOTES
 
 - Session:
   . Added session_gc() that performs session data garbage collection.
+    https://wiki.php.net/rfc/session-gc
   . Added session_create_id() for creating custom session ID.
+    https://wiki.php.net/rfc/session-create-id
 
 - Standard:
   . Added is_iterable() that determines if a value will be accepted by the new