Init Spanish translation (#13543)

* Add OWNERS information for sig-docs-es

* Add spanish README file

* Add Spanish language section

* Add headless _common-resources section

* Add case-studies section

* Add docs section

* Add search page

* Add overview section

* Add main content page

* Add i18n strings for Spanish language

* Add alexbrand as OWNER and REVIEWER

* Add glo-pena as REVIEWER

* Add headless include section

* Add partners section

* Add blog section

* Add Code of Conduct manifests

* Add supported-doc-versions page

* Add community site

* Add sitemap

* Remove overview section

* Add initial home version

* Rework phrase

* Fix typo

* Add update-user-guid-links script

* Upload Spanish CoC updated version

https://github.com/cncf/foundation/commit/e2a956

* Rework phrase

* Fix typo in community index

* Fix informal person usage

* Translate sitemap page

* Add electrocucaracha as REVIEWER

* Add landing page for /es/docs

* Remove home pages from initial translation

* Upload Spanish CoC updated version

https://github.com/cncf/foundation/commit/6474dfd

* Add more information to the docs landing

config.toml

@@ -212,3 +212,15 @@ contentDir = "content/de"
 time_format_blog = "02.01.2006"
 # A list of language codes to look for untranslated content, ordered from left to right.
 language_alternatives = ["en"]
+
+[languages.es]
+title = "Kubernetes"
+description = "Production-Grade Container Orchestration"
+languageName ="Español"
+weight = 9
+contentDir = "content/es"
+
+[languages.es.params]
+time_format_blog = "02.01.2006"
+# A list of language codes to look for untranslated content, ordered from left to right.
+language_alternatives = ["en"]