docs: add guides (ant-design-blazor#414)

.github/CONTRIBUTING.md

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+# Contributing to Ant Design
+
+Want to contribute to Ant Design? There are a few things you need to know.
+
+We wrote a **[contribution guide](https://ant.design/en-US/docs/contributing)** to help you get started.
+
+---
+
+# 参与共建
+
+想要给 Ant Design Blazor 贡献自己的一份力量？
+
+我们写了一份 **[贡献指南](https://ant.design/zh-CN/docs/contributing)** 来帮助你开始。

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: 🐞 Bug report
+about: Create a report about something that is not working
+---
+
+
+### Describe the bug
+A clear and concise description of what the bug is.
+
+### To Reproduce
+<!--
+We ❤ code! Point us to a minimalistic repro project hosted in a GitHub repo.
+For a repro project, create a new ASP.NET Core project using the template of your your choice, apply the minimum required code to result in the issue you're observing.
+
+We will close this issue if:
+- the repro project you share with us is complex. We can't investigate custom projects, so don't point us to such, please.
+- if we will not be able to repro the behavior you're reporting
+-->
+
+### Exceptions (if any)
+<!-- 
+Include the exception you get when facing this issue
+-->
+
+### Further technical details
+- AntDesign Nuget Package version
+- Include the output of `dotnet --info`
+- The IDE (VS / VS Code/ VS4Mac) you're running on, and it's version

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: 💡 Feature request
+about: Suggest an idea for this project
+---
+
+### Is your feature request related to a problem? Please describe.
+A clear and concise description of what the problem is.
+Example: I am trying to do [...] but [...]
+
+### Describe the solution you'd like
+A clear and concise description of what you want to happen. Include any alternative solutions you've considered.
+
+### Additional context
+Add any other context or screenshots about the feature request here.

.github/PULL_REQUEST_TEMPLATE.md

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+<!--
+First of all, thank you for your contribution! 😄
+
+New feature please send pull request to feature branch, and rest to master branch.
+Pull request will be merged after one of collaborators approve.
+Please makes sure that these form are filled before submitting your pull request, thank you!
+-->
+
+[[中文版模板 / Chinese template](https://github.com/ant-design-blazor/ant-design-blazor/blob/master/.github/PULL_REQUEST_TEMPLATE/pr_cn.md)]
+
+### 🤔 This is a ...
+
+- [ ] New feature
+- [ ] Bug fix
+- [ ] Site / documentation update
+- [ ] Demo update
+- [ ] Component style update
+- [ ] TypeScript definition update
+- [ ] Bundle size optimization
+- [ ] Performance optimization
+- [ ] Refactoring
+- [ ] Code style optimization
+- [ ] Test Case
+- [ ] Branch merge
+- [ ] Other (about what?)
+
+### 🔗 Related issue link
+
+<!--
+1. Describe the source of requirement, like related issue link.
+-->
+
+### 💡 Background and solution
+
+<!--
+1. Describe the problem and the scenario.
+2. GIF or snapshot should be provided if includes UI/interactive modification.
+3. How to fix the problem, and list final API implementation and usage sample if that is an new feature.
+-->
+
+### 📝 Changelog
+
+<!--
+Describe changes from userside, and list all potential break changes or other risks.
+--->
+
+| Language   | Changelog |
+| ---------- | --------- |
+| 🇺🇸 English |           |
+| 🇨🇳 Chinese |           |
+
+### ☑️ Self Check before Merge
+
+⚠️ Please check all items below before review. ⚠️
+
+- [ ] Doc is updated/provided or not needed
+- [ ] Demo is updated/provided or not needed
+- [ ] Changelog is provided or not needed

.github/PULL_REQUEST_TEMPLATE/pr_cn.md

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+<!--
+首先，感谢你的贡献！😄
+
+新特性请提交至 feature 分支，其余可提交至 master 分支。
+在一个维护者审核通过后合并。
+请确保填写以下 pull request 的信息，谢谢！~
+
+[[English Template / 英文模板](?expand=1)]
+-->
+
+### 🤔 这个变动的性质是？
+
+- [ ] 新特性提交
+- [ ] 日常 bug 修复
+- [ ] 站点、文档改进
+- [ ] 演示代码改进
+- [ ] 组件样式改进
+- [ ] TypeScript 定义更新
+- [ ] 包体积优化
+- [ ] 性能优化
+- [ ] 重构
+- [ ] 代码风格优化
+- [ ] 测试用例
+- [ ] 分支合并
+- [ ] 其他改动（是关于什么的改动？）
+
+### 🔗 相关 Issue
+
+<!--
+1. 描述相关需求的来源，如相关的 issue 讨论链接。
+-->
+
+### 💡 需求背景和解决方案
+
+<!--
+1. 要解决的具体问题。
+2. 列出最终的 API 实现和用法。
+3. 涉及UI/交互变动需要有截图或 GIF。
+-->
+
+### 📝 更新日志怎么写？
+
+<!--
+> 从用户角度描述具体变化，以及可能的 breaking change 和其他风险？
+-->
+
+| 语言    | 更新描述 |
+| ------- | -------- |
+| 🇺🇸 英文 |          |
+| 🇨🇳 中文 |          |
+
+### ☑️ 请求合并前的自查清单
+
+⚠️ 请自检并全部**勾选全部选项**。⚠️
+
+- [ ] 文档已补充或无须补充
+- [ ] 代码演示已提供或无须提供
+- [ ] Changelog 已提供或无须提供

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at [email protected]. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq