Updated Word doc to include information about how the Windows service works if...

Updated Word doc to include information about how the Windows service works if installed with the MSI.

msvs/msi/RedisWindowsX64/Product.wxs

@@ -9,10 +9,10 @@
       default install:
         msiexec /i Redis-Windows-x64.msi 
         
-      set port and turn on firewall exception:
+      set port and turn off firewall exception:
         msiexec /i Redis-Windows-x64.msi PORT=1234 FIREWALL_ON=""
       
-      set port and turn off firewall exception:
+      set port and turn on firewall exception:
         msiexec /i Redis-Windows-x64.msi PORT=1234 FIREWALL_ON=1