Update powershell.asc

Style tweak

Author: Klaus Frank

book/A-git-in-other-environments/sections/powershell.asc

@@ -17,6 +17,7 @@ If you're an administrator and want to set it for all Users on that machine, use
 If you're a normal user, without administrative rights, you can use "-Scope CurrentUser" to set it only for you.
 More about PowerShell Scopes: (https://technet.microsoft.com/de-de/library/hh847849.aspx[])
 More about PowerShell ExecutionPolicy: (https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.security/set-executionpolicy[])
+
 [source,powershell]
 -----
 > Set-ExecutionPolicy -Scope LocalMachine -ExecutionPolicy RemoteSigned -Force