create issue templates

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,44 @@
+---
+name: Bug Report
+about: File a bug with import-cost.nvim
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!-- Be sure you can affirm the following: -->
+<!-- import-cost.nvim is up to date -->
+<!-- I have searched the issue tracker and not found a similar issue -->
+
+### Info
+
+- Operating System:
+- Terminal:
+- `nvim --version`:
+- Node package manager:
+- `<node-package-manager> --version`:
+
+### Configuration
+
+<!-- Replace the below with your import-cost.nvim setup -->
+
+```lua
+require('import-cost').setup {
+
+}
+```
+
+<!-- Replace the below with your *neovim* package manager setup -->
+
+```lua
+require('nvim-package-manager').setup {
+    -- ...
+    'barrett-ruth/import-cost.nvim',
+}
+```
+
+</details>
+
+### Description
+<!-- A clear and concise description of the bug -->