Remove note in lua-api.txt that there are no vector helper functions

diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index daef00d8b8af4b8cc0d15819f8b17061a42c2df6..12892e5b55c5b3dd376e61199bb8d10bdbbfa765 100644 (file)
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -507,8 +507,7 @@ Representations of simple things
 --------------------------------
 Position/vector:
   {x=num, y=num, z=num}
-Currently the API does not provide any helper functions for addition,
-subtraction and whatever; you can define those that you need yourself.
+For helper functions see "Vector helpers".
 
 pointed_thing:
   {type="nothing"}