Arma 3: add additional information on comments to template config files (#319)

arma3server.cfg

@@ -82,6 +82,9 @@ class AdvancedOptions
 // USER CONFIGURABLE SETTINGS - CHANGE/ADD ADDITIONAL SETTINGS HERE
 // *******
 
+// Note that any lines below that begin with // are commented out and will not be applied by the server
+// Remove the // from the beginning of any line that you want to apply
+
 // VOTING
 //allowedVoteCmds[] = { { "kick", false, false, 0.75 } };
 //allowedVotedAdminCmds[] = { { "mission", true, true } };