Translate reference/command-line-tools-reference/feature-gates in Jap…

…anese (kubernetes#16554)

* Translate docs/reference/command-line-tools-reference/feature-gates in ja

* Fix inconsistent spellings

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: nasa9084 <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: nasa9084 <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: nasa9084 <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: nasa9084 <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: nasa9084 <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: nasa9084 <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: Naoki Oketani <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: Naoki Oketani <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: Naoki Oketani <[email protected]>

* ポッド -> Pod

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: Naoki Oketani <[email protected]>

* Update content/ja/docs/reference/command-line-tools-reference/feature-gates.md

Co-Authored-By: Naoki Oketani <[email protected]>

* ポッドreadinessゲート -> Pod readiness gate

* ポッド -> pod

* Pods -> Pod

* Fix typo: Kunbernetes -> Kubernetes

* 機能ゲート -> フィーチャーゲート

* リポジトリ -> リポジトリー

* キー=値 -> key=value