Merge pull request #72 from jwesleye/patch-1

Correction to base URL for paper trading.

Author: ttt733

README.md

@@ -48,9 +48,8 @@ follows.
 ## Base URL
 
 The base URL for API calls defaults to `https://api.alpaca.markets/`. This endpoint
-is for live trading, and for paper trading and other purposes, you can to change
-the base URL. You can pass `base_url` kwarg to `REST()`, or using the environment
-variable, `APCA_API_BASE_URL`.
+is for live trading. You can change the base URL to `https://paper-api.alpaca.markets`
+for paper trading. You can specify the API URL with the environment variable `APCA_API_BASE_URL`.
 
 The environment variable `APCA_API_DATA_URL` can also be changed to configure the
 endpoint for returning data from the `/bars` endpoint. By default, it will use