Merge pull request #14 from oug-t/feat/contributing

docs: add issue and PR templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: 🐛 Bug Report
+about: Create a report to help us improve difi
+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. Press keys '...'
+3. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Environment (please complete the following information):**
+
+- OS: [e.g. macOS / Linux / Windows]
+- Terminal Emulator: [e.g. iTerm2, Alacritty, tmux]
+- Difi Version: [e.g. v0.1.0 or commit hash]
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: 🚀 Feature Request
+about: Suggest an idea for this project
+title: "[FEAT] "
+labels: enhancement
+assignees: ''
+---
+
+**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.

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+Please include a summary of the change and which issue is fixed.
+
+Fixes # (issue)
+
+## Type of change
+- [ ] 🐛 Bug fix (non-breaking change which fixes an issue)
+- [ ] 🚀 New feature (non-breaking change which adds functionality)
+- [ ] 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] 📚 Documentation update
+
+## Checklist:
+- [ ] My code follows the style guidelines of this project (`go fmt ./...`)
+- [ ] I have performed a self-review of my own code
+- [ ] I have added tests that prove my fix is effective or that my feature works