update readme to most recent release

Author: sreeder

README.md

@@ -19,10 +19,10 @@ To make running ODMTools easier we have included installers. Please select the o
 
 ####Windows
 Recommended Release:
-+   [Window v1.2.0-beta](https://github.com/ODM2/ODMToolsPython/releases/download/v1.2.0-Win/ODMTools_1.2.0_Beta_Win_Installer.exe)
++   [Window v1.2.2-beta](https://github.com/ODM2/ODMToolsPython/releases/download/v1.2.2-beta/ODMTools_1.2.2_Beta_Win_Installer.exe)
 
 ####Mac
-+   [Mac v1.2.0-beta](https://github.com/ODM2/ODMToolsPython/releases/download/v1.2.0-Win/ODMTools_1.2.0_Beta_Mac_Installer.pkg.zip)
++   [Mac v1.2.2-beta](https://github.com/ODM2/ODMToolsPython/releases/download/v1.2.2-beta/ODMTools_v1.2.2-beta_Mac_installer.pkg.zip)
 
 ####Linux
 +   *Please run from source*