Update redlib.conf

This setting expects an array of subs and not a boolean value. 
This confuses new users and also seems to be unintentional. 

Removing the comment character would lead to an error output on the start page. “Couldn't send request to Reddit: Post url contains non-ASCII characters | /r/off (sub1%2Bsub2%2Bsub3)/hot.json?&raw_json=1”

contrib/redlib.conf

@@ -12,6 +12,6 @@ PORT=12345
 #REDLIB_DEFAULT_USE_HLS=off
 #REDLIB_DEFAULT_HIDE_HLS_NOTIFICATION=off
 #REDLIB_DEFAULT_AUTOPLAY_VIDEOS=off
-#REDLIB_DEFAULT_SUBSCRIPTIONS=off (sub1+sub2+sub3)
+#REDLIB_DEFAULT_SUBSCRIPTIONS=(sub1+sub2+sub3)
 #REDLIB_DEFAULT_HIDE_AWARDS=off
 #REDLIB_DEFAULT_DISABLE_VISIT_REDDIT_CONFIRMATION=off