Update building_block_listeners.md

docs/bot_tutorial/building_block_listeners.md

@@ -1,8 +1,8 @@
 # Listeners
-Listeners are a way to execute custom actions when a certain Discord event happens. For example, on message creation, when a member joins or leaves a guild, or when someone changes user or nickname.
+Listeners are a way to execute custom actions when a certain Discord event happens. For example, on message creation, when a member joins or leaves a guild, or when someone changes their username or nickname.
 
 ## Listeners in disco
-Listeners are easy to use and implement in Disco. First of all, we'll create a [plugin](https://b1naryth1ef.github.io/disco/bot_tutorial/building_block_plugins.html) like so:
+Listeners are easy to use and implement in Disco. First of all, we'll create a [Plugin](https://b1naryth1ef.github.io/disco/bot_tutorial/building_block_plugins.html) like so:
 ```py
 class MyPlugin(Plugin):
 ```
@@ -14,21 +14,38 @@ def on_event_name(self, event):
 ```
 Change the `'EventName'` in the `.listen()` method to the event name you want to listen to, and give the `on_event_name` method a more descriptive name.
 
-Now, on to adding the first listener to our plugin.
+This listener will listen for a new message and will reply with the exact same message every time. 
-The listener will listen for a new message and will reply with the exact same message every time. 
 ```py
 @Plugin.listen('MesageCreate')
 def on_message_create(self, event):
     event.reply(event.message.content)
 ```
-Let's create a nother listener, this time one that listens for a member that's added to the guild, when this happens, it will send a welcome message in a welcome channel. For this example, we'll asume the ID for that channel's ID is stored in a constant named `WELCOME_CHANNEL`:
+Let's create another listener, this time one that listens for a member that's added to the guild, when this happens, it will send a welcome message in a welcome channel:
 ```py
+WELCOME_CHANNEL = 381890676654080001
+
 @Plugin.listen('GuildMemberAdd')
 def on_member_add(self, event):
-    self.bot.client.api.channels_messages_create(
+    self.bot.client.state.channels.get(WELCOME_CHANNEL).send_message(
-        WELCOME_CHANNEL,
         'Welcome to the server {}'.format(event.member.user.mention())
     )
 ```
 
 A list of all Discord events supported by disco can be found [here](https://b1naryth1ef.github.io/disco/api/disco_gateway_events.html) including event attributes and functions you can use on the event property.
+
+These are all the listeners we created in this tutorial:
+
+```py
+class MyPlugin(Plugin):
+    @Plugin.listen('MesageCreate')
+    def on_message_create(self, event):
+        event.reply(event.message.content)
+    
+    WELCOME_CHANNEL = 381890676654080001
+
+    @Plugin.listen('GuildMemberAdd')
+    def on_member_add(self, event):
+        self.bot.client.state.channels.get(WELCOME_CHANNEL).send_message(
+            'Welcome to the server {}'.format(event.member.user.mention())
+        )
+```