Update issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: "[Bug]"
+labels: bug, question
+assignees: Rundll86
+
+---
+
+**Describe the bug**
+A clear and concise description of *what the bug is*.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Modify at file '...' in \<line> \<column>
+2. Start dev server and extension runs outside expectly
+3. Check if something went wrong with 'error stuck' in native console or client developer tools
+4. Make sure the bug came out **by Framework** instead of **by Your modified codes**
+
+**Expected behavior**
+A clear and concise description of *what you expected to happen*.
+
+**Log info**
+If applicable, add `screenshots`, `client or console logger` to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. win, linux, mac]
+ - Browser [e.g. chrome, safari, edge]
+ - Version field in `package.json` [e.g. 1.0.0]
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this framework
+title: "[Feature]"
+labels: enhancement, question
+assignees: Rundll86
+
+---
+
+**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.

.github/ISSUE_TEMPLATE/sample-code-request.md

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+---
+name: Sample code request
+about: Request an sample extension to learn this framework
+title: "[Request]"
+labels: documentation, enhancement
+assignees: Rundll86
+
+---
+
+**Extension type**
+What did it use for?(eg. For calc something outside Scratch)
+
+**What features will be added**
+List all the `blocks` and `menus` and their `text`.For the block, you also add their `arguments` and `type`. The implements aren't necessary. You can ask anyone to make it.
+
+(eg. Block "add [a:number] + [b:number]",then returns the sum of a and b)
+
+**What framework content do you want to see in it**
+The framework add lots of useful content, choose ones of them.
+
+(eg. Use decorator to auto generate block)
+
+**Metadata**(Fill in these info)
+1. What platform will it run: (TurboWarp or GandiIDE)
+2. Name: (eg. advanced math)
+3. Id: (If this is blank, we will infer it from Name)
+4. Color: (Only theme or all 3 colors)
+5. Collaborators: (Your name or anonymous)