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-events/.helmignore

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

charts/argo-events/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 description: A Helm chart to install Argo-Events in k8s Cluster
 name: argo-events
-version: 1.10.1
+version: 1.10.2
 keywords:
   - argo-events
   - sensor-controller
@@ -17,4 +17,4 @@ icon: https://argoproj.github.io/argo-events/assets/logo.png
 home: https://github.com/argoproj/argo-helm
 annotations:
   artifacthub.io/changes: |
-    - "[Changed]: Update to Argo Events v1.5.6"
+    - "[Changed]: Consistent .helmignore"