[zh] Fix feature-gates/z*.md content format

Author: Arhell

content/zh-cn/docs/reference/command-line-tools-reference/feature-gates/zero-limited-nominal-concurrency-shares.md

@@ -12,7 +12,7 @@ stages:
 ---
 <!--
 Allow [Priority & Fairness](/docs/concepts/cluster-administration/flow-control/)
-in the API server to use a zero value for the `nominalConcurrencyShares field of
+in the API server to use a zero value for the `nominalConcurrencyShares` field of
 the `limited` section of a priority level.
 -->
 允许 API 服务器中的[优先级和公平性](/zh-cn/docs/concepts/cluster-administration/flow-control/)使用