Added more text, prepared for example replacement

docs/features/commands.rst

@@ -5,16 +5,31 @@ The `Discord.Net.Commands`_ package DiscordBotClient extends DiscordClient with
 
 .. _Discord.Net.Commands: https://www.nuget.org/packages/Discord.Net.Commands
 
-Example (Simple)
+In order to create a command, you have to add a CommandService to the client.
+CommandService takes a CommandServiceConfig object as its parameter. Inside CommandServiceConfig you can setup your CommandChar(s) and HelpMode.
+
+Example (CommandService creation)
+
+.. literalinclude:: /samples/command_service_creation.cs
+   :language:csharp6
+   :tab-width 2
+
+After command service has been added, you can use the CommandService to create commands.
+
+Example (Command creation)
 ----------------
 
 .. literalinclude:: /samples/command.cs
    :language: csharp6
    :tab-width: 2
    
-Example (Groups)
+If you have, or plan to have multiple commands that could be fit in a certain "group", you should use Command Groups. Command Groups can have same prefix for a group of commands, followed by a prefix for a certain command.
+   
+Example (CommandGroup creation)
 ----------------
 
 .. literalinclude:: /samples/command_group.cs
    :language: csharp6
-   :tab-width: 2
+   :tab-width: 2
+
+In this example, to call a greet bye command, we would type "~greet bye" in chat.