feat(all): Add Documentation Guidelines (#1099)

* feat(all): Add Documentation Guidelines

Signed-off-by: Oliver Bähler <oliverbaehler@hotmail.com>

* Satisfy Linter

Signed-off-by: Oliver Bähler <oliverbaehler@hotmail.com>

* Apply changes from code review

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

* fix: Also add *.gotmpl to argo-rollouts/.helmignore

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

Co-authored-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

charts/argo-workflows/.helmignore

@@ -20,3 +20,4 @@
 .idea/
 *.tmproj
 ci/
+*.gotmpl

charts/argo-workflows/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: argo-workflows
 description: A Helm chart for Argo Workflows
 type: application
-version: 0.9.4
+version: 0.9.5
 appVersion: v3.2.6
 icon: https://raw.githubusercontent.com/argoproj/argo-workflows/master/docs/assets/argo.png
 home: https://github.com/argoproj/argo-helm
@@ -15,4 +15,4 @@ maintainers:
   - name: benjaminws
 annotations:
   artifacthub.io/changes: |
-    - "[Changed]: Update to app version v3.2.6"
+    - "[Changed]: Consistent .helmignore"