Add issue templates

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Something isn't working
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+## Description
+
+<!--Include steps to reproduce, what you expect to happen, and the actual result-->
+
+
+## Neovim setup
+
+- Neovim version:   <!--[e.g. 0.9.4] (note that outline.nvim requires 0.7+)-->
+- Outline.nvim version:   <!--[e.g. v1.0.0, or a commit hash]-->
+- Neovim distro (if applicable):   <!--[e.g. LazyVim]-->
+- Plugin manager:   <!--[e.g. Lazy.nvim]-->
+
+<!--Please include your relevant config for outline.nvim below, if any-->
+
+Config:
+```
+
+```

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,19 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+## Description
+
+
+<!--
+  Please include whether you're interested in implementing this feature yourself.
+
+  In many cases, a feature doesn't land solely because there isn't enough interest or motivation for someone to implement it.
+
+  Thanks for proposing ways to improve outline.nvim!
+-->