docs: rework documentation site (#1589)

* initial commit

* inital changes

* commit WIP Information Architecture

* commit a working state

* add static assets and project

* add org and fix img names

* add plausible

* remove img

* change sidebar to easier mgmt

* add openid oauth and domains

* lint md

* quickstarts

* add auth flow

* identity brokering

* remove site

* fix broken links

* extend footer

* extend readme

* fix: styling

* fix: zitadel logo on index

* styling

* border

* fix: nav

* fix: nav

* fix: index

* fix: rename architecture to concepts

* fix: introductions

* fix: introductions

* fix: introductions

* fix: get started

* fix: user manual

* fix: zitadel architecture

* fix: dead links

* add favicon

Co-authored-by: fabi <fabienne.gerschwiler@gmail.com>
Co-authored-by: Livio Amstutz <livio.a@gmail.com>

docs/README.md

@@ -0,0 +1,34 @@
+# Website
+
+This website is built using [Docusaurus 2](https://v2.docusaurus.io/), a modern static website generator.
+
+## Add new Sites to existing Topics
+
+To add a new site to the already existing structure simply save the `md` file into the corresponding folder and append the sites id int the file `sidebars.js`.
+
+## Installation
+
+```console
+yarn install
+```
+
+## Local Development
+
+```console
+yarn start
+```
+
+This command starts a local development server and open up a browser window. Most changes are reflected live without having to restart the server.
+
+## Build
+
+```console
+yarn build
+```
+
+This command generates static content into the `build` directory and can be served using any static contents hosting service.
+
+## Deployment
+
+Each PR will be automaticly built with a preview link from cloudflare pages.
+Visit the checks / comments on the PR for the link.