docs: update README

***NO_CI***

README.md

@@ -23,7 +23,8 @@
 - **[Official Website](https://wiki.js.org/)**
 - **[Documentation](https://docs.requarks.io/)**
 - [Requirements](https://docs.requarks.io/install/requirements)
-- [Demo](#demo)
+- [Installation](https://docs.requarks.io/install)
+- [Demo](https://docs.requarks.io/demo)
 - [Change Log](https://docs.requarks.io/releases)
 - [Feature Requests](https://wiki.js.org/feedback)
 - [Chat with us on Slack](#slack)
@@ -48,24 +49,6 @@ Wiki.js is an open source project that has been made possible due to the generou
 
 </div>
 
-<h2 align="center">Docker</h2>
-
-<div align="center">
-
-Docker is the recommended way to go! Simply use Docker image: `requarks/wiki:2` 
-
-You can also use Docker Compose ([see example](https://github.com/Requarks/wiki/blob/master/dev/examples/docker-compose.yml)) to run Wiki.js with all dependencies.
-
-</div>
-
-<h2 align="center">Demo</h2>
-
-<div align="center">
-
-Check out our [documentation site](https://docs.requarks.io), it's running Wiki.js!
-
-</div>
-
 <h2 align="center">Slack</h2>
 
 <div align="center">