Update readme for mac users

Author: thedjnK

README.md

@@ -20,7 +20,7 @@ If using the SSL version of UwTerminalX, then the Visual Studio 2015 runtime fil
 
 ### Mac:
 
-(**Mac OS X version 10.10 or later is required if using the pre-compiled binaries, as Secure Transport is built into OS X there is no non-SSL build available for OS X systems**): Download and open the dmg file, open it to mount it as a drive on your computer, go to the disk drive and copy the file UwTerminalX to folder on your computer. You can run UwTerminalX by double clicking the icon.
+(**Mac OS X version 10.10 or later is required if using the pre-compiled binaries, as Secure Transport is built into OS X there is no non-SSL build available for OS X systems**): Download and open the dmg file, open it to mount it as a drive on your computer, go to the disk drive and copy the file UwTerminalX to folder on your computer. You can run UwTerminalX by double clicking the icon - if you are greeted with a warning that the executable is untrusted then you can run it by right clicking it and selecting the 'run' option. If this does not work then you may need to view the executable security settings on your mac.
 
 ### Linux (Including Raspberry Pi):