docs: setup API section with cli-experimental site

site/content/en/docs/Reference/API/commonAnnotations.md

@@ -0,0 +1,58 @@
+---
+title: "commonAnnotations"
+linkTitle: "commonAnnotations"
+type: docs
+weight: 3
+description: >
+    Add annotations to add all resources.
+---
+
+Add annotations to all resources.  If the annotation key already is present on the resource,
+the value will be overridden.
+
+```yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+commonAnnotations:
+  oncallPager: 800-555-1212
+```
+
+## Example
+
+### File Input
+
+```yaml
+# kustomization.yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+commonAnnotations:
+  oncallPager: 800-555-1212
+
+resources:
+- deploy.yaml
+```
+
+```yaml
+# deploy.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: example
+spec:
+  ...
+```
+
+### Build Output
+
+```yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: example
+  annotations:
+    oncallPager: 800-555-1212
+spec:
+  ...
+```