diff --git a/README.md b/README.md
index 77fec14..e3f735b 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ In this example `auth = John:Game,John:Family,Mary:Game,Tim:Family,admin:*,*:Pub
 - `Mary:Game` = Mary can access the Game room 
 - `Tim:Family` = Tim can access the Family room 
 - `admin:*` = admin can access all rooms
-- `*:Public` = everybody can only acccess the Public room
+- `*:Public` = everybody can acccess the Public room
 - `*:` = everybody  can access the unnamed room
 
 ## Screen shot
diff --git a/sources/conf/setup.ini b/sources/conf/setup.ini
index c3ee2b8..a3db4fd 100644
--- a/sources/conf/setup.ini
+++ b/sources/conf/setup.ini
@@ -1,12 +1,14 @@
 ; how often get data from serwer
 interval = 2500 ; milliseconds
 
-; authorized user:room (comma separated)
-; caution: names must be valid for file names !
-; :room with no user name is a room opened to any user name 
-; user: with no room name is a user allowed to every room 
-; default = single unnamed room and free user names
+; Authorizations (comma separated)
 auth=*:
+; Explanations:
+;   *: (default) means all users can access the no name room
+;   user:room means the user is allowed to room
+;   *:room is a room opened to all 
+;   user:* is a user allowed to any room 
+;   user: is a user allowed to the no name room  
 ; Example:
 ;auth = John:Game,John:Family,Mary:Game,Tim:Family,admin:*,*:Public,*: