diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97b58c0..559a044 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+## [Unreleased]
+
+### Added
+
+- [#108](https://github.com/kytta/shareon/pull/108)
+ Fediverse button (via [Share₂Fedi](https://github.com/kytta/share2fedi))
+
## [2.4.0] - 2023-12-07
### Added
diff --git a/README.md b/README.md
index 82a8a98..9ddf307 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,7 @@ names of which match the names of the social networks (or `copy-url`, for the
```html
+
@@ -140,6 +141,8 @@ Apart from the URL and title, some networks support extra parameters:
- you **MUST** add `data-fb-app-id` to the FB Messenger button to make sharing
even possible
+- add `data-s2f-instance` to the Fediverse button to set your Share₂Fedi
+ instance
- add `data-media` to an Odnoklassniki, Pinterest, or VK button to customize
the pinned picture
- add `data-text` to a Mastodon, Telegram, Tumblr, Viber, or WhatsApp button to add
@@ -155,6 +158,7 @@ Here are all custom parameters:
```html