Add bug report issue template + issue hub YAML configs (#287)

* Add ISSUE_TEMPLATE config
* Add bug report template config

.github/ISSUE_TEMPLATE/1.bug_report.yml

@@ -0,0 +1,44 @@
+name: Bug Report
+description: Create a bug report for Headless UI.
+title: ''
+labels: []
+issue_body: true
+body:
+  - type: input
+    attributes:
+      label: What package within Headless UI are you using?
+      description: 'For example: @headlessui/react'
+    validations:
+      required: true
+  - type: input
+    attributes:
+      label: What version of that package are you using?
+      description: 'For example: v0.3.1'
+    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. If it's really unnecessary, link us to a YouTube video you think is awesome instead.
+    validations:
+      required: true
+  - type: markdown
+    attributes:
+      value: "## Describe your issue\nDescribe the problem you're seeing, any important steps to reproduce and what behavior you expect instead"

.github/workflows/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: Feature Request
+    url: https://github.com/tailwindlabs/tailwindcss/discussions/new?category=ideas
+    about: 'Suggest any ideas you have using our discussion forums.'
+  - name: Help
+    url: https://github.com/tailwindlabs/tailwindcss/discussions/new?category=help
+    about: 'If you have a question or need help, ask a question on the discussion forums.'
+  - name: Kind Words
+    url: https://github.com/tailwindlabs/tailwindcss/discussions/new?category=kind-words
+    about: "Have something nice to say about Headless UI or Tailwind in general? We'd love to hear it!"