proposed documentation changes due to breaking Discord Bot changes

[jborichevskiy]

Hi! Love what y'all have built here.

As I was setting up the bot on Autocode today I was confused by why my discord events were arriving with the message.content field as blank, no matter what bot permissions I tried to use.

I eventually traced this down to a long-coming Discord API update -- Message Content is a Privileged Intent. Since my bot is installed in less than 100 servers, I was able to fix this by changing the following setting:

1. https://discord.com/developers/applications
2. select the relevant application/bot
3. select the Bot tab on the left navigation panel
4. switch the MESSAGE CONTENT INTENT toggle to the enabled state.

Doing so started sending the message content through all the way to twitter as expected.

I was following the instructions here but I'm not sure where else you have instructions listed.