Update issue templates

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

@@ -0,0 +1,32 @@
+---
+name: "\U0001F41B Bug report"
+about: Report a reproducible bug or regression
+title: "[bug]: "
+labels: bug
+assignees: ''
+
+---
+
+**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.
+
+**Platform (please complete the following information):**
+ - OS: [e.g. MacOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Additional context**
+Add any other context about the problem here.

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

@@ -0,0 +1,20 @@
+---
+name: "\U0001F4E6 Feature request"
+about: An idea or request for new functionality
+title: "[feature]: "
+labels: enhancement
+assignees: ''
+
+---
+
+**1~3 main use cases of the proposed feature**
+Ex: As a ..., I have many tasks scattered across documents, and I want to have a unified entry to view these tasks.
+
+**Ideas for Solution**
+Ex: A task view can be added to view all tasks.
+
+**what types of users can benefit from using your proposed feature**
+Ex: busy programmer.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/---improvement-request.md

@@ -0,0 +1,20 @@
+---
+name: "\U0001F340 Improvement request"
+about: An improvement to existing functionality
+title: "[improvement]: "
+labels: improvement
+assignees: ''
+
+---
+
+**1~3 main use cases of the proposed improvement**
+Ex: As a ..., I have many tasks scattered across documents, and I want to have a unified entry to view these tasks.
+
+**Ideas for Solution**
+Ex: A task view can be added to view all tasks.
+
+**what types of users can benefit from using your proposed feature**
+Ex: busy programmer.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.