Update README.md

Author: michaelchu

README.md

@@ -12,7 +12,7 @@ Optopsy is a nimble backtesting and statistics library for option strategies, it
 
 ## Supported Option Strategies
 * Calls/Puts
-* Straddles/Strangles (WIP)
+* Straddles/Strangles
 * Butterflies/Iron Condors (WIP)
 * Many more to follow
 
@@ -29,7 +29,7 @@ You will need Python 3.6 or newer and Pandas 0.23.1 or newer and Numpy 1.14.3 or
 
 ### Installation
 ```
-pip install optopsy==2.0.0b1
+pip install optopsy==2.0.0b2
 ```
 
 ### Example