Docs: Create ISSUE_TEMPLATE.md

Author: not-an-aardvark

.github/ISSUE_TEMPLATE.md

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+<!-- If you're reporting a bug, please provide the following information to make it easier to triage your issue. If you don't provide this information, your issue may be closed. If a question isn't applicable to your report, feel free to skip it/delete it. -->
+
+**What version of `eslint` are you using?**
+
+**What version of `prettier` are you using?**
+
+**What version of `eslint-plugin-prettier` are you using?**
+
+**Please paste any applicable config files that you're using (e.g. `.prettierrc` or `.eslintrc` files)**
+
+**What source code are you linting?**
+
+**What did you expect to happen?**
+
+**What actually happened?**