feat(argocd-apps): adopt additional Applications/Projects to argocd-apps chart (#1356)

Signed-off-by: yu-croco <yuki.kita22@gmail.com>

charts/argocd-apps/README.md.gotmpl

@@ -0,0 +1,26 @@
+{{ template "chart.header" . }}
+
+{{ template "chart.description" . }}
+
+To regenerate this document, from the root of this chart directory run:
+```shell
+docker run --rm --volume "$(pwd):/helm-docs" -u $(id -u) jnorwood/helm-docs:latest
+```
+
+## Prerequisites
+
+- Helm v3.0.0+
+- CRDs (Application and AppProject)
+  - You need to install them via [argo-cd Helm chart](../argo-cd) or upstream.
+
+## Installation
+
+```console
+$ helm repo add argo https://argoproj.github.io/argo-helm
+$ helm install my-release argo/argocd-apps
+```
+
+{{ template "chart.valuesSection" . }}
+
+----------------------------------------------
+Autogenerated from chart metadata using [helm-docs](https://github.com/norwoodj/helm-docs)