Creative: Document creative.formspec_add in game_api.txt

diff --git a/game_api.txt b/game_api.txt
index 93cf05273854477aea9e9da39b31e3e9a23bb665..ca090c4b27c229db85f6ac6620e3f9ee676090c1 100644 (file)
--- a/game_api.txt
+++ b/game_api.txt
@@ -61,6 +61,11 @@ Beds API
                }
        }
 
+Creative API
+------------
+
+A global string called `creative.formspec_add` was added which allows mods to add additional formspec elements onto the default creative inventory formspec to be drawn after each update.
+
 Doors API
 ---------