Add two examples to demonstrate [, ], I, and D

examples.txt

@@ -11,4 +11,7 @@
 /o*84<
 \94,n\
 /o*84<
-\f4%n;
+\f4%n;
+
+abcdef0983[D3[DII;      prints nothing, but should have three stacks [[10, 11, 12], [13, 14, 15], [0, 9, 8]]
+abcdef0983[D3[DIID]I];  prints nothing, and ends with the stack in the same order. Splits it and collapse it several times, though.