fix: Fixed pages showing up in wrong language (#1752)

* Fix languages

* Missed change for version number

* Add language field for presentation

* Revert change in README for double buffer

Co-authored-by: Jackie Nim <=>

zh/version-number/README.md

@@ -2,8 +2,9 @@
 layout: pattern
 title: Version Number
 folder: versionnumber
-permalink: /patterns/versionnumber/
+permalink: /patterns/versionnumber/zh
 description: Entity versioning with version number
+language: zh
 
 categories:
  - Concurrency