docs: prettify code

Author: yanglbme

Diff for: .docsifytopdfrc.js

@@ -1,7 +1,7 @@
 module.exports = {
-    contents: [ "summary.md" ],
-    pathToPublic: "pdf/advanced-java.pdf",
-    pdfOptions: "<options for puppeteer.pdf()>",
-    removeTemp: true,
-    emulateMedia: "screen",
-}
+  contents: ["summary.md"],
+  pathToPublic: "pdf/advanced-java.pdf",
+  pdfOptions: "<options for puppeteer.pdf()>",
+  removeTemp: true,
+  emulateMedia: "screen",
+};

Diff for: README.md

@@ -80,7 +80,7 @@
 
 ## 加入我们
 
-刷编程题的最大好处就是可以锻炼解决问题的思维能力。相信我，「如何去思考」​本身也是一项需要不断学习和练习的技能。非常感谢前微软工程师、现蚂蚁金服技术专家 [@kfstorm](https://github.com/kfstorm) 贡献了本项目的所有 [C# 题解](https://github.com/doocs/leetcode/pull/245)。
+刷编程题的最大好处就是可以锻炼解决问题的思维能力。相信我，「如何去思考」​ 本身也是一项需要不断学习和练习的技能。非常感谢前微软工程师、现蚂蚁金服技术专家 [@kfstorm](https://github.com/kfstorm) 贡献了本项目的所有 [C# 题解](https://github.com/doocs/leetcode/pull/245)。
 
 如果你对本项目感兴趣，并且希望加入我们刷题大军，欢迎随时提交 [PR](https://github.com/doocs/leetcode/pulls)。请参考如下步骤：
 
@@ -111,10 +111,10 @@
 
 <a href="https://opencollective.com/doocs-leetcode/sponsors.svg?width=890" target="_blank"><img src="https://opencollective.com/doocs-leetcode/sponsors.svg?width=890"></a>
 
-> "*You help the developer community practice for interviews, and there is nothing better we could ask for.*" -- [Alan Yessenbayev](https://opencollective.com/alan-yessenbayev)
+> "_You help the developer community practice for interviews, and there is nothing better we could ask for._" -- [Alan Yessenbayev](https://opencollective.com/alan-yessenbayev)
 
 ## 许可证
 
 <a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">知识共享 版权归属-相同方式共享 4.0 国际 公共许可证</a>
 
-<a rel="license" href="https://github.com/doocs/leetcode/blob/master/LICENSE"><img alt="Creative Commons License" style="border-width:0" src="./images/cc-by-sa-88x31.png" /></a>
+<a rel="license" href="https://github.com/doocs/leetcode/blob/master/LICENSE"><img alt="Creative Commons License" style="border-width:0" src="./images/cc-by-sa-88x31.png" /></a>