update some comments

system/config.example.json

@@ -228,13 +228,13 @@
   // User to run the server as. If present, newserv will attempt to switch to
   // this user's permissions after loading its configuration and opening
   // listening sockets. The special value $SUDO_USER causes newserv to look up
-  // the desired username in the $SUDO_USER variable instead.
+  // the desired username in the $SUDO_USER environment variable instead.
   // "User": "$SUDO_USER",
 
-  // Information menu contents. Each entry is a 3-list of
-  // [title, short description, full contents]. In the short description and
-  // full contents, you can use PSO escape codes with the $ character (for
-  // example, $Cx for colors).
+  // Information menu contents. Each entry is a list containing [title,
+  // short description, full contents]. In the short description and full
+  // contents, you can use PSO escape codes with the $ character (for example,
+  // $Cx for colors).
   "InformationMenuContents": [
     ["Lobby commands", "Show commands used\nin the lobby", "These commands can be used in the lobby.\n\n$C6%sli$C7: Show basic information about the lobby\n$C6%sarrow <color-id>$C7: Change your lobby arrow color\n$C6%sln [name]$C7: Change the lobby type (for you only)\n$C6%sexit$C7: Leave the current game or lobby\n$C6%spatch <name>$C7: Run a patch on your client\n\n$C8Episode 3 only:$C7\n$C6%ssong <song-id>$C7: Play a jukebox song"],
     ["Game commands", "Show commands used\nin games", "These commands can be used to customize games.\n\n$C8Before starting a game:$C7\n$C6%ssecid <section-id>$C7: Set your override section ID\n$C6%srand <seed>$C7: Set your override random seed\n\n$C8When in a game:$C7\n$C6%sli$C7: Show basic information about the game\n$C6%swhat$C7: Describe the nearest item on the ground\n$C6%smaxlevel <level>$C7: Set maximum level to join\n$C6%sminlevel <level>$C7: Set minimum level to join\n$C6%spassword [password]$C7: Lock or unlock the game"],
@@ -274,8 +274,8 @@
   // changed in each lobby independently with the $event command, or in all
   // lobbies with the $allevent command. When a game is created, it inherits the
   // holiday event from the lobby from which it was created.
-  // The value for this field can be a string like "xmas" (the values have the
-  // same meanings as the $event command), or an integer.
+  // The value for this field can be a string like "xmas" (the names used here
+  // are the same as for the $event command), or an integer.
   // "LobbyEvent": "xmas",
   // Episode 3 menu song. If set, Episode 3 clients will hear this song when
   // they are at the newserv main menu. If set, this value must be an integer.