chore: docs for 0.2.11 release

exampleSite/content/posts/theme-documentation-mermaid-shortcode/index.en.md

@@ -18,6 +18,8 @@ categories: ["documentation"]
 hiddenFromHomePage: true
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+{{< version 0.2.11 changed >}}
+
 The `mermaid` shortcode supports diagrams in Hugo with [Mermaid](https://mermaidjs.github.io/) library.
 
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exampleSite/content/posts/theme-documentation-mermaid-shortcode/index.zh-cn.md

@@ -18,6 +18,8 @@ categories: ["documentation"]
 hiddenFromHomePage: true
 ---
 
+{{< version 0.2.11 changed >}}
+
 `mermaid` shortcode 使用 [Mermaid](https://mermaidjs.github.io/) 库提供绘制图表和流程图的功能.
 
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