add en pages

content/en/docs/reference/using-api/deprecation-policy.md

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 - lavalamp
 - thockin
 title: Kubernetes Deprecation Policy
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 weight: 40
 ---
 
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 This document details the deprecation policy for various facets of the system.
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 Kubernetes is a large system with many components and many contributors.  As
 with any such software, the feature set naturally evolves over time, and
 sometimes a feature may need to be removed. This could include an API, a flag,
@@ -425,4 +425,4 @@ leaders to find the best solutions for those specific cases, always bearing in
 mind that Kubernetes is committed to being a stable system that, as much as
 possible, never breaks users. Exceptions will always be announced in all
 relevant release notes.
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