docs: add chart field to application.yaml (argoproj#8239)

* docs: add chart field to application.yaml

Signed-off-by: Michael Crenshaw <michael@crenshaw.dev>

* docs: more clarification

Signed-off-by: Michael Crenshaw <michael@crenshaw.dev>

Author: crenshaw-dev

docs/operator-manual/application.yaml

@@ -4,7 +4,7 @@ metadata:
   name: guestbook
   # You'll usually want to add your resources to the argocd namespace.
   namespace: argocd
-  # Add a this finalizer ONLY if you want these to cascade delete.
+  # Add this finalizer ONLY if you want these to cascade delete.
   finalizers:
     - resources-finalizer.argocd.argoproj.io
 spec:
@@ -13,11 +13,12 @@ spec:
 
   # Source of the application manifests
   source:
-    repoURL: https://github.com/argoproj/argocd-example-apps.git
-    targetRevision: HEAD
-    path: guestbook
+    repoURL: https://github.com/argoproj/argocd-example-apps.git  # Can point to either a Helm chart repo or a git repo.
+    targetRevision: HEAD  # For Helm, this refers to the chart version.
+    path: guestbook  # This has no meaning for Helm charts pulled directly from a Helm repo instead of git.
 
     # helm specific config
+    chart: chart-name  # Set this when pulling directly from a Helm repo. DO NOT set for git-hosted Helm charts.
     helm:
       # Extra parameters to set (same as setting through values.yaml, but these take precedence)
       parameters: