Added exception documentation for Guild.create_voice_channel

discord/guild.py

@@ -906,6 +906,15 @@ class Guild(Hashable):
         user_limit: :class:`int`
             The channel's limit for number of members that can be in a voice channel.
             
+        Raises
+        ------
+        Forbidden
+            You do not have the proper permissions to create this channel.
+        HTTPException
+            Creating the channel failed.
+        InvalidArgument
+            The permission overwrite information is not in proper form.
+
         Returns
         -------
         :class:`VoiceChannel`
@@ -928,6 +937,15 @@ class Guild(Hashable):
             The ``category`` parameter is not supported in this function since categories
             cannot have categories.
             
+        Raises
+        ------
+        Forbidden
+            You do not have the proper permissions to create this channel.
+        HTTPException
+            Creating the channel failed.
+        InvalidArgument
+            The permission overwrite information is not in proper form.
+
         Returns
         -------
         :class:`CategoryChannel`