Chat: Restructure layout

_en/players/chat.md

@@ -8,17 +8,19 @@ redirect_from: /en/chapters/chat.html
 cmd_online:
     level: warning
     title: Offline players can run commands
-    message: <p>A player name is passed instead of a player object because mods
+    message: |
+        A player name is passed instead of a player object because mods
         can run commands on behalf of offline players. For example, the IRC
-             bridge allows players to run commands without joining the game.</p>
+        bridge allows players to run commands without joining the game.
 
-             <p>So make sure that you don't assume that the player is online.
-             You can check by seeing if <pre>minetest.get_player_by_name</pre> returns a player.</p>
+        So make sure that you don't assume that the player is online.
+        You can check by seeing if `minetest.get_player_by_name` returns a player.
 
 cb_cmdsprivs:
     level: warning
     title: Privileges and Chat Commands
-    message: The shout privilege isn't needed for a player to trigger this callback.
+    message: |
+        The shout privilege isn't needed for a player to trigger this callback.
         This is because chat commands are implemented in Lua, and are just
         chat messages that begin with a /.
 
@@ -29,17 +31,20 @@ cb_cmdsprivs:
 Mods can interact with player chat, including
 sending messages, intercepting messages, and registering chat commands.
 
-- [Sending Messages to All Players](#sending-messages-to-all-players)
-- [Sending Messages to Specific Players](#sending-messages-to-specific-players)
+- [Sending Messages](#sending-messages)
+  - [To All Players](#to-all-players)
+  - [To Specific Players](#to-specific-players)
 - [Chat Commands](#chat-commands)
-- [Complex Subcommands](#complex-subcommands)
+  - [Accepting Multiple Arguments](#accepting-multiple-arguments)
     - [Using string.split](#using-stringsplit)
     - [Using Lua patterns](#using-lua-patterns)
 - [Intercepting Messages](#intercepting-messages)
 
-## Sending Messages to All Players
+## Sending Messages
 
-To send a message to every player in the game, call the chat_send_all function.
+### To All Players
+
+To send a message to every player in the game, call the `chat_send_all` function.
 
 ```lua
 minetest.chat_send_all("This is a chat message to all players")
@@ -53,9 +58,9 @@ Here is an example of how this appears in-game:
 
 The message appears on a separate line to distinguish it from in-game player chat.
 
-## Sending Messages to Specific Players
+### To Specific Players
 
-To send a message to a specific player, call the chat_send_player function:
+To send a message to a specific player, call the `chat_send_player` function:
 
 ```lua
 minetest.chat_send_player("player1", "This is a chat message for player1")
@@ -82,20 +87,25 @@ minetest.register_chatcommand("foo", {
 In the above snippet, `interact` is listed as a required
 [privilege](privileges.html) meaning that only players with the `interact` privilege can run the command.
 
+`param` is a string containing everything a player writes after the chatcommand
+name. For example, if a user types `/grantme one,two,three` then `param` will be
+`one,two,three`.
+
 Chat commands can return up to two values,
 the first being a Boolean indicating success, and the second being a
 message to send to the user.
 
 {% include notice.html notice=page.cmd_online %}
 
-## Complex Subcommands
+### Accepting Multiple Arguments
 
-It's common for chat commands to require multiple arguments, for example,
-`/team join <team_name>`. There are two ways
-of doing this, either using Minetest's string split or Lua patterns.
+<a name="complex-subcommands"></a>
 
+`param` gives you all the arguments to a chat command in a single string. It's
+common for chat commands to need to extract multiple arguments. There are two
+ways of doing this, either using Minetest's string split or Lua patterns.
 
-### Using string.split
+#### Using string.split
 
 A string can be split up into words using `string.split(" ")`:
 
@@ -120,8 +130,7 @@ else
 end
 ```
 
-
-### Using Lua patterns
+#### Using Lua patterns
 
 [Lua patterns](https://www.lua.org/pil/20.2.html) are a way of extracting stuff
 from text using rules. They're best suited for when there are arguments that can