adding more gifs

labs/list_iterators_new/README.md

@@ -24,7 +24,19 @@ Here are examples of reversing GIF.
 
 Example 1:
 
-[Original GIF](dog_good.gif) [Reversed GIF](dog_bad.gif)
+This is the [original GIF](dog_good.gif). And this is the [reversed GIF](dog_bad.gif)
+
+Example 2:
+
+This is the [original GIF](door_break.gif). And this is the [reversed GIF](door_restore.gif)
+
+Example 3:
+
+This is the [original GIF](jump_real.gif). And this is the [reversed GIF](jump_fake.gif)
+
+Example 4:
+
+This is the [original GIF](brick_real.gif). And this is the [reversed GIF](brick_fake.gif)
 
 ## Checkpoint 1A: Reverse with STL Vector Swaps
 *estimate: TBD*