Update docs

docs/lua_api.txt

@@ -78,6 +78,12 @@ Vector3
 	**angle** (a, b) : float
 		Returns the angle between the vectors *a* and *b*.
 
+	**max** (a, b) : Vector3
+		Returns a vector that contains the largest value for each component from *a* and *b*.
+
+	**min** (a, b) : Vector3
+		Returns a vector that contains the smallest value for each component from *a* and *b*.
+
 	**forward** () : Vector3
 
 	**backward** () : Vector3