readme: update about section

Author: crazy-max

README.md

@@ -11,10 +11,13 @@
 
 ## About
 
-[DokuWiki](https://www.dokuwiki.org/dokuwiki) Docker image based on Alpine Linux.<br />
-If you are interested, [check out](https://hub.docker.com/r/crazymax/) my other Docker images!
+Docker image for [DokuWiki](https://www.dokuwiki.org/dokuwiki), a simple to use
+and highly versatile Open Source wiki software that doesn't require a database.
 
-💡 Want to be notified of new releases? Check out 🔔 [Diun (Docker Image Update Notifier)](https://github.com/crazy-max/diun) project!
+> **Note**
+> 
+> Want to be notified of new releases? Check out 🔔 [Diun (Docker Image Update Notifier)](https://github.com/crazy-max/diun)
+> project!
 
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