Update README.md

hw3/README.md

@@ -10,7 +10,7 @@ $ cd cmsc13600-materials
 $ git pull
 ```
 
-Copy the folder ``hw1`` to your newly cloned submission repository. Enter that repository from the command line and enter the copied ``hw1`` folder. In this homework assignment, you will only modify ``encoding.py``. Once you are done, you must add 'encoding.py' to git:
+Copy the folder ``hw3`` to your newly cloned submission repository. Enter that repository from the command line and enter the copied ``hw3`` folder. In this homework assignment, you will only modify ``encoding.py``. Once you are done, you must add 'encoding.py' to git:
 ```
 $ git add encoding.py 
 ```