Updated Documentation

tests/dt.a

@@ -5,7 +5,6 @@ FUNCTIONS (
     fit() -> bool,
     predict() -> vecint
 );
-
 create table tb(x int);
 create table tb2(x double, y double, z double);
 insert into tb values (0);

tests/network.a

@@ -10,3 +10,4 @@ FROM	 network
 	     ASSUMING ASC src, ASC dst, ASC _time 
 GROUP BY src, dst, sums (deltas(_time) > 120)
 
+-- Assuming preserve order at the end.