Add design decision regarding autoplay

README.md

@@ -42,6 +42,7 @@ Everything is designed and engineered for my own use case, following my taste an
 - **Status actions (reply, boost, favourite, bookmark, etc) are hidden by default**.<br>They only appear in individual status page. This is to reduce clutter and distraction. It may result in lower engagement, but we're not chasing numbers here.
 - **Boost is represented with the rocket icon**.<br>The green double arrow icon (retweet for Twitter) doesn't look right for the term "boost". Green rocket looks weird, so I use purple.
 - **Short usernames (`@username`) are displayed in timelines, instead of the full account username (`@username@instance`)**.<br>Despite the [guideline](https://docs.joinmastodon.org/api/guidelines/#username) mentioned that "Decentralization must be transparent to the user", I don't think we should shove it to the face every single time. There are also some [screen-reader-related accessibility concerns](https://twitter.com/lifeofablindgrl/status/1595864647554502656) with the full username, though this web app is unfortunately not accessible yet.
+- **No autoplay for video/GIF/whatever in timeline**.<br>The timeline is already a huge mess with lots of people, brands, news and media trying to grab your attention. Let's not make it worse. (Current exception now would be animated emojis.)
 - **Hash-based URLs**.<br>This web app is not meant to be a full-fledged replacement to Mastodon's existing front-end. There's no SEO, database, serverless or any long-running servers. I could be wrong one day.
 
 ## Development