Content or attachments can only be attached to cards. Files can not be attached directly to lists or boards: https://help.trello.com/article/796-attaching-documents-with-google-drive
As a new user, there are a few resources that you may want to check out in order to get the most out of Trello. The first place that I’d suggest is the Getting Started Guide, which is a great illustrated how-to guide for getting started with Trello: https://trello.com/guide
Additionally, sometimes one of the best ways to get started with Trello is to see how other people are using it to gain perspective on their own projects. Check out this list of inspiring boards https://trello.com/inspiration and our new Trello Team Playbooks at https://trello.com/teams
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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