Add Bybit (#560)

Author: jacobjthompson

README.md

@@ -38,6 +38,7 @@ The following cryptocurrency exchanges are supported:
 | BL3P           | x           | x            | R B        | Trades stream does not send trade's ids. |
 | Bleutrade      | x           | x            |            |
 | BTSE           | x           | x            |            |
+| Bybit          | x           | x            | R          | Has public method for Websocket Positions
 | Coinbase       | x           | x            | T R        |
 | Digifinex      | x           | x            | R B        |
 | Gemini         | x           | x            | R          |