docs(readme.md readme-zh.md): add a reminder

Author: EvanWonghere

README-zh.md

@@ -12,7 +12,13 @@
 
 ## 贡献
 
-对于站内任何一部分，你若有想要增添/修正/删减等的内容，欢迎提出 [Pull Request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork) 。
+对于站内任何一部分，你若有想要增添/修正/删减等的内容，欢迎提出 [Pull Request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork)  ，在提交之前，请先自行运行
+
+```bash
+mkdocs serve
+```
+
+进行测试。
 
 本仓库采用 [commitlint](https://github.com/conventional-changelog/commitlint) + [husky](https://github.com/typicode/husky) 的方案自动进行 `commit message` 的审查，请确保 `commit message` 符合 [Conventional Commits](https://www.conventionalcommits.org/zh-hans/v1.0.0/) 规范。但也不必过多担心，本仓库已集成 [Commitizen](https://github.com/commitizen/cz-cli) 协助填写 `commit message` 。具体包及版本见 [package.json](package.json) ，在首次 `commit` 前请使用
 

README.md

@@ -12,7 +12,13 @@ The site has automatic deployment in place, so there is no need to build static
 
 ## Contribution
 
-If you have any content you want to add, correct, or delete on this site, you are welcome to submit a [Pull Request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork).
+If you have any content you want to add, correct, or delete on this site, you are welcome to submit a [Pull Request](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork). Before committing, please run
+
+```bash
+mkdocs serve
+```
+
+to test it first.
 
 This repository uses the [commitlint](https://github.com/conventional-changelog/commitlint) + [husky](https://github.com/typicode/husky) solution to automatically review `commit messages`. Please ensure that your `commit messages` conform to the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) specification. However, don't worry too much, as this repository has integrated [Commitizen](https://github.com/commitizen/cz-cli) to assist in writing `commit messages`. For specific packages and versions, see [package.json](package.json). Before first committing, please use