docs: add docusaurus docs

* Created website for the docs inside /docs

* remove old docs and home page

* fix wrong redirection path

* remove most of the docs from the readme

* fix docs path

* undo package.json changes

* remove unused images

* rename "how to" route

---------

Co-authored-by: Elias Schneider <login@eliasschneider.com>

docs/sidebars.ts

@@ -0,0 +1,67 @@
+import type { SidebarsConfig } from "@docusaurus/plugin-content-docs";
+
+/**
+ * Creating a sidebar enables you to:
+ - create an ordered group of docs
+ - render a sidebar for each doc of that group
+ - provide next/previous navigation
+
+ The sidebars can be generated from the filesystem, or explicitly defined here.
+
+ Create as many sidebars as you want.
+ */
+const sidebars: SidebarsConfig = {
+  docsSidebar: [
+    {
+      type: "doc",
+      id : "introduction",
+    },
+    {
+      type: "category",
+      label: "Getting Started",
+      items: [
+        {
+          type: "doc",
+          id: "setup/installation",
+        },
+        {
+          type: "doc",
+          id: "setup/configuration",
+        },
+        {
+          type: "doc",
+          id: "setup/integrations",
+        },
+        {
+          type: "doc",
+          id: "setup/oauth2login",
+        },
+        {
+          type: "doc",
+          id: "setup/upgrading",
+        },
+      ],
+    },
+    {
+      type: "category",
+      label: "Helping Out",
+      items: [
+        {
+          type: "doc",
+          id: "help-out/translate",
+        },
+        {
+          type: "doc",
+          id: "help-out/contribute",
+        },
+      ],
+    },
+    {
+      type: "link",
+      label: "Discord",
+      href: "https://discord.gg/HutpbfB59Q",
+    },
+  ],
+};
+
+export default sidebars;