Clarify connection status indicators in FAQ

Author: zoff99

FAQ.md

@@ -18,11 +18,14 @@ There are 3 circles on the contact item, see
 * the circle around avatar (`1`) tells the connection type, like
     * <span style="background-color: green; color: white">green</span> -> friend is online via UDP
     * <span style="background-color: yellow; color: black">yellow</span> -> friend is online via TCP
-    * <span style="background-color: gray; color: white">gray</span> -> friend is offline
-* the medium circle (`2`) tells the conncetion status, like
+    * <span style="background-color: gray; color: white">grey</span> -> friend is offline
+* the medium circle (`2`) inner circle tells the connection status, like
     * <span style="background-color: green; color: white">green</span> -> friend has toxproxy (for offline messages) and proxy is online
     * <span style="background-color: yellow; color: black">yellow</span> -> friend has PUSH notification feature
     * <span style="background-color: red; color: white">red</span> -> friend has toxproxy (for offline messages) but it is offline
+* the medium circle (`2`) outer circle tells the connection status, like
+    * <span style="background-color: green; color: white">green</span> -> friend is online
+    * <span style="background-color: red; color: white">red</span> -> friend is offline
 * the smallest circle (`3`) tells the contact/user status, like
     * <span style="background-color: green; color: white">green</span> -> friend set status to "I'm available"
     * <span style="background-color: yellow; color: black">yellow</span> -> friend set status to "I'm away"