diff --git a/README.md b/README.md
index b40382c..9c9c9d5 100644
--- a/README.md
+++ b/README.md
@@ -1,22 +1,27 @@
-phpbb-3.1-ext-editedpostsunread
-===============================
+# Mark Edited Posts Unread
 
-This extension marks topic's last posts and first post as unread if they are edited.
+[![Tests](https://github.com/phpbbmodders/phpbb-3.1-ext-editedpostsunread/actions/workflows/tests.yml/badge.svg)](https://github.com/phpbbmodders/phpbb-3.1-ext-editedpostsunread/actions/workflows/tests.yml) [![Lint](https://github.com/phpbbmodders/phpbb-3.1-ext-editedpostsunread/actions/workflows/lint.yml/badge.svg)](https://github.com/phpbbmodders/phpbb-3.1-ext-editedpostsunread/actions/workflows/lint.yml)
 
-## Installation
+Marks a topic unread again when its last post is edited.
+
+## Features
 
-### 1. clone
-Clone (or download and move) the repository into the folder /ext/phpbbmodders/editedpostsunread:
+- Editing the last post in a topic (or the only post) moves its time to now, so the topic shows as unread for everyone.
+- Edits to earlier posts are left alone.
+- No settings.
 
-```
-cd phpBB3
-git clone https://github.com/phpbbmodders/phpbb-3.1-ext-editedpostsunread.git ext/phpbbmodders/editedpostsunread/
-```
+## Requirements
 
-### 2. activate
-Go to admin panel -> tab customise -> Manage extensions -> enable Mark Edited Posts Unread
+- phpBB 3.3.19 or later
+- PHP 7.4 or later
+
+## Installation
 
-## Upgrading from `phpbbmodders/editedposts_unread`
+1. Copy the extension to `/ext/phpbbmodders/editedpostsunread`
+2. In the Administration Control Panel, go to **Customise → Manage extensions**
+3. Enable the **Mark Edited Posts Unread** extension
+
+### Upgrading from `phpbbmodders/editedposts_unread`
 
 This extension was renamed from `editedposts_unread` to `editedpostsunread` to meet phpBB's extension naming rules (no underscores). To switch an existing install:
 
@@ -26,3 +31,22 @@ This extension was renamed from `editedposts_unread` to `editedpostsunread` to m
 4. Purge the board cache.
 
 If you disable the old extension from the command line (`bin/phpbbcli.php`) instead of the ACP, run `bin/phpbbcli.php cache:purge` before enabling the new one; the command-line disable doesn't clear the cache.
+
+## Contributing
+
+Contributions are welcome!
+
+- **Bug reports**: [Open an issue](https://github.com/phpbbmodders/phpbb-3.1-ext-editedpostsunread/issues).
+- **Everything else** (questions, feature requests, ideas, general discussion): [Use Discussions](https://github.com/orgs/phpbbmodders/discussions), or the [community forum](https://www.phpbbmodders.com/community/).
+- Pull requests are welcome for bug fixes or discussed features.
+
+## Acknowledgments
+
+- Original extension by Rich McGirr ([RMcGirr83](https://github.com/rmcgirr83)).
+- Code review, bug fixes, and documentation assisted by [Claude](https://www.anthropic.com/claude).
+
+## License
+
+This extension is licensed under the **GNU General Public License v2.0**.
+
+See [LICENSE.txt](LICENSE.txt) for more information.
diff --git a/composer.json b/composer.json
index f5f49f4..0aee922 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
 	"name": "phpbbmodders/editedpostsunread",
 	"type": "phpbb-extension",
-	"description": "Will mark posts as unread if edited",
+	"description": "Marks a topic unread again when its last post is edited.",
 	"homepage": "https://www.phpbbmodders.com/",
 	"version": "1.0.0",
 	"time": "2014-10-28",