Add bug report template

Author: adamwathan

.github/ISSUE_TEMPLATE/1.bug_report.yml

@@ -0,0 +1,39 @@
+name: Bug Report
+about: Create a bug report for this library.
+title: ''
+labels: []
+issue_body: true
+body:
+  - type: input
+    attributes:
+      label: What version of @tailwindcss/jit are you using?
+      description: 'For example: v0.1.3'
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: What version of Node.js are you using?
+      description: 'For example: v12.0.0'
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: What browser are you using?
+      description: 'For example: Chrome, Safari, or N/A'
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: What operating system are you using?
+      description: 'For example: macOS, Windows'
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: Reproduction repository
+      description: A public GitHub repo that demonstrates the bug. Use "N/A" if you really think it's unnecessary.
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: Describe your issue below, including any important steps to reproduce and what behavior you expect.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false