Update README.md

Author: wallacewd

README.md

@@ -4,3 +4,8 @@
 ## 1. crypto/PriceStream.py    
     -> Creates/subscribes to binance websocket to retrieve live price data. 
     -> This is done using standard python libraries, not python api wrappers.
+    
+## 2. data/Binary.py
+    -> Compresses multi-dimensional arrays into 1D array, saves to binary file. 
+    -> Unpacks binary file into usable python dict
+    -> This is useful for storing large data-sets without taking up much hard-drive space.