German localization for horizontal pod autoscaler (#14251)

* fix kubecon date

* add plural to ref

* add hpa

* fixed not found templates

content/de/docs/templates/feature-state-beta.txt

@@ -0,0 +1,8 @@
+This feature is currently in a *beta* state, meaning:
+
+* The version names contain beta (e.g. v2beta3).
+* Code is well tested. Enabling the feature is considered safe. Enabled by default.
+* Support for the overall feature will not be dropped, though details may change.
+* The schema and/or semantics of objects may change in incompatible ways in a subsequent beta or stable release. When this happens, we will provide instructions for migrating to the next version. This may require deleting, editing, and re-creating API objects. The editing process may require some thought. This may require downtime for applications that rely on the feature.
+* Recommended for only non-business-critical uses because of potential for incompatible changes in subsequent releases. If you have multiple clusters that can be upgraded independently, you may be able to relax this restriction.
+* **Please do try our beta features and give feedback on them! After they exit beta, it may not be practical for us to make more changes.**

content/de/docs/templates/index.md

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+---
+headless: true
+
+resources:
+- src: "*alpha*"
+  title: "alpha"
+- src: "*beta*"
+  title: "beta"
+- src: "*deprecated*"
+  title: "deprecated"
+- src: "*stable*"
+  title: "stable"
+---