feat(Docusaurs): Move to stable and add how-to (#3605)

* feat(Docusaurs): Move to stable and add how-to

* small typos

* pre-commit

Co-authored-by: Stavros Kois <47820033+stavros-k@users.noreply.github.com>
Co-authored-by: Stavros kois <s.kois@outlook.com>

charts/stable/docusaurus/Chart.yaml

@@ -0,0 +1,32 @@
+apiVersion: v2
+appVersion: "latest"
+dependencies:
+  - name: common
+    repository: https://library-charts.truecharts.org
+    version: 10.5.0
+deprecated: false
+description: Docusaurus makes it easy to maintain Open Source documentation websites.
+home: https://truecharts.org/docs/charts/stable/docusaurus
+icon: https://truecharts.org/img/hotlink-ok/chart-icons/docusaurus.png
+keywords:
+  - documentation
+  - website
+  - Docusaurus
+kubeVersion: ">=1.16.0-0"
+maintainers:
+  - email: info@truecharts.org
+    name: TrueCharts
+    url: https://truecharts.org
+name: docusaurus
+sources:
+  - https://github.com/truecharts/charts/tree/master/charts/stable/docusaurus
+  - https://hub.docker.com/r/awesometic/docusaurus
+  - https://github.com/awesometic/docker-docusaurus
+type: application
+version: 1.0.0
+annotations:
+  truecharts.org/catagories: |
+    - website
+    - documentation
+  truecharts.org/SCALE-support: "true"
+  truecharts.org/grade: U