Update issue templates

Author: xiazeyu

.github/ISSUE_TEMPLATE/bug-report-----.md

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+---
+name: Bug report 错误报告
+about: Create a report to help us improve 创造一个报告以便更好地迭代
+
+---
+
+**Describe the bug**
+**描述你的问题**
+A clear and concise description of what the bug is.
+请简明清晰地描述您所遇到的问题
+
+**To Reproduce**
+**复现步骤**
+Steps to reproduce the behavior:
+复现此问题的步骤
+URL 出现问题的网站地址:
+Console output 控制台输出:
+
+1. Go to '...'
+打开'...'
+2. Click on '....'
+双击'...'
+3. Scroll down to '....'
+滑动到'...'
+4. See error of '...'
+发现'...'错误
+
+**Expected behavior**
+**预期的行为**
+A clear and concise description of what you expected to happen.
+请简明清晰地描述此操作预期的结果
+
+**Screenshots**
+**屏幕截图**
+If applicable, add screenshots to help explain your problem.
+如果可能, 请添加一些屏幕截图来更好地描述你的问题
+
+**Environment (please complete the following information):**
+**环境信息(请务必填写下列信息)**
+ - Device: [e.g. iPhone 6, PC]
+ - OS操作系统: [e.g. iOS 8.1, Windows 10]
+ - Browser浏览器 [e.g. Chrome 66, Safari 11.2]
+ - live2d-widget: [e.g. 3.0.0]
+> use `npm ls live2d-widget` to get current plugin's version.
+使用 `npm ls live2d-widget` 来获取当前插件版本.
+- Command of loading加载命令:
+```js
+
+L2Dwidget.init();
+
+```
+
+**Additional context**
+**额外的信息**
+Add any other context about the problem here.
+请在此处描述其他的内容
+
+- [ ] I have alreday read instructions in [CONTRIBUTING](CONTRIBUTING.md).
+  我已仔细阅读[CONTRIBUTING](CONTRIBUTING.md)中的相关内容。
+
+- [ ] I have alreday read instructions in [README](../README.md).
+  我已仔细阅读[README](../README.md)中的相关内容。
+
+> Change the `[ ]` into `[x]` to show your acceptance.
+将 `[ ]` 变为 `[x]` 来表示你接受了这些问题。
+
+@EYHN @xiazeyu

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature-request------.md

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+---
+name: Feature request 请求新功能
+about: Suggest an idea for this project 为我提一个新想法
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+**你的新功能与某一个问题有关吗?**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+请简明清晰地描述你的问题, 例如: 我常常因为 [...] 而失望
+
+**Describe the solution you'd like**
+**你的方案是**
+A clear and concise description of what you want to happen.
+请简明清晰地描述你的方案
+
+**Describe alternatives you've considered**
+**一些你考虑过的替代方案有**
+A clear and concise description of any alternative solutions or features you've considered.
+请简明清晰地描述你的考虑过的替代方案或功能
+
+**Additional context**
+**额外的信息**
+Add any other context or screenshots about the feature request here.
+请在此处描述其他的内容或者一些有关此功能的截图

.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. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.