Update README.md to indicate Codeberg move (#5140)

Author: connyduck

README.md

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-[![Translate - with Weblate](https://img.shields.io/badge/translate%20with-Weblate-green.svg?style=flat)](https://weblate.tusky.app/) [![OpenCollective](https://opencollective.com/tusky/backers/badge.svg)](https://opencollective.com/tusky/) [![Build Status](https://github.com/tuskyapp/Tusky/actions/workflows/deploy-test.yml/badge.svg)](https://github.com/tuskyapp/Tusky/actions/workflows/deploy-test.yml)
+This repository has moved to Codeberg: https://codeberg.org/tusky/Tusky
+
 # Tusky
 
 <img src="/fastlane/metadata/android/en-US/images/icon.png" width="120" height="120"/>
 
-Tusky is a beautiful Android client for [Mastodon](https://github.com/mastodon/mastodon). Mastodon is an ActivityPub federated social network. That means no single entity controls the whole network, rather, like e-mail, volunteers and organisations operate their own independent servers, users from which can all interact with each other seamlessly.
-
 [<img src="/assets/fdroid_badge.png" alt="Get it on F-Droid" height="80" />](https://f-droid.org/repository/browse/?fdid=com.keylesspalace.tusky)
 [<img src="https://play.google.com/intl/en_us/badges/images/generic/en_badge_web_generic.png" alt="Get it on Google Play" height="80" />](https://play.google.com/store/apps/details?id=com.keylesspalace.tusky&utm_source=github&pcampaignid=MKT-Other-global-all-co-prtnr-py-PartBadge-Mar2515-1)
-
-## Features
-
-- Material Design
-- Most Mastodon APIs implemented
-- Multi-Account support
-- Dark, light and black themes with the possibility to auto-switch based on the time of day
-- Drafts - compose posts and save them for later
-- Choose between different emoji styles
-- Optimized for all screen sizes
-- Completely open-source - no non-free dependencies like Google services
-
-### Testing
-
-The nightly build containing the newest development code is [available on Google Play](https://play.google.com/store/apps/details?id=com.keylesspalace.tusky.test).
-
-### Support
-
-Check out our [FAQs](https://github.com/tuskyapp/faq/blob/main/README.md), your question may already be answered.
-If you have any bug reports, feature requests or questions please open an issue or send us a message at [Tusky@mastodon.social](https://mastodon.social/@Tusky)!
-
-### Contributing
-We always welcome new contributors! Please read our [contribution guide](https://github.com/tuskyapp/Tusky/blob/develop/CONTRIBUTING.md) to get started.
-
-### Development chatroom
-https://matrix.to/#/#Tusky:matrix.org