include CodeSandbox links (#2488)

.github/ISSUE_TEMPLATE/config.yml

@@ -7,7 +7,7 @@ contact_links:
     url: https://github.com/tailwindlabs/headlessui/discussions/new?category=ideas
     about: 'Suggest any ideas you have using our discussion forums.'
   - name: Bug Report
-    url: https://github.com/tailwindlabs/headlessui/issues/new?body=%3C!--%20Please%20provide%20all%20of%20the%20information%20requested%20below.%20We're%20a%20small%20team%20and%20without%20all%20of%20this%20information%20it's%20not%20possible%20for%20us%20to%20help%20and%20your%20bug%20report%20will%20be%20closed.%20--%3E%0A%0A**What%20package%20within%20Headless%20UI%20are%20you%20using?**%0A%0AFor%20example:%20@headlessui/react%0A%0A**What%20version%20of%20that%20package%20are%20you%20using?**%0A%0AFor%20example:%20v0.3.1%0A%0A**What%20browser%20are%20you%20using?**%0A%0AFor%20example:%20Chrome,%20Safari,%20or%20N/A%0A%0A**Reproduction%20URL**%0A%0AA%20public%20GitHub%20repo%20that%20includes%20a%20minimal%20reproduction%20of%20the%20bug.%20**Please%20do%20not%20link%20to%20your%20actual%20project**,%20what%20we%20need%20instead%20is%20a%20_minimal_%20reproduction%20in%20a%20fresh%20project%20without%20any%20unnecessary%20code.%20This%20means%20it%20doesn't%20matter%20if%20your%20real%20project%20is%20private/confidential,%20since%20we%20want%20a%20link%20to%20a%20separate,%20isolated%20reproduction%20anyways.%20Unfortunately%20we%20can't%20provide%20support%20without%20a%20reproduction,%20and%20your%20issue%20will%20be%20closed%20with%20no%20comment%20if%20this%20is%20not%20provided.%0A%0A**Describe%20your%20issue**%0A%0ADescribe%20the%20problem%20you're%20seeing,%20any%20important%20steps%20to%20reproduce%20and%20what%20behavior%20you%20expect%20instead.
+    url: https://github.com/tailwindlabs/headlessui/issues/new?body=%3C%21--+Please+provide+all+of+the+information+requested+below.+We%27re+a+small+team+and+without+all+of+this+information+it%27s+not+possible+for+us+to+help+and+your+bug+report+will+be+closed.+--%3E%0A%0A**What+package+within+Headless+UI+are+you+using%3F**%0A%0AFor+example%3A+%40headlessui%2Freact%0A%0A**What+version+of+that+package+are+you+using%3F**%0A%0AFor+example%3A+v0.3.1%0A%0A**What+browser+are+you+using%3F**%0A%0AFor+example%3A+Chrome%2C+Safari%2C+or+N%2FA%0A%0A**Reproduction+URL**%0A%0AA+public+GitHub+repo+that+includes+a+minimal+reproduction+of+the+bug.+**Please+do+not+link+to+your+actual+project**%2C+what+we+need+instead+is+a+_minimal_+reproduction+in+a+fresh+project+without+any+unnecessary+code.+This+means+it+doesn%27t+matter+if+your+real+project+is+private%2Fconfidential%2C+since+we+want+a+link+to+a+separate%2C+isolated+reproduction+anyways.+Unfortunately+we+can%27t+provide+support+without+a+reproduction%2C+and+your+issue+will+be+closed+with+no+comment+if+this+is+not+provided.%0A%0AYou+can+use+one+of+the+starting+projects+on+CodeSandbox%3A%0A%0A-+With+React+and+Tailwind+CSS%3A+https%3A%2F%2Fcodesandbox.io%2Fs%2Fgithub%2Ftailwindlabs%2Freproduction-headlessui-react%0A-+With+Vue+and+Tailwind+CSS%3A+https%3A%2F%2Fcodesandbox.io%2Fs%2Fgithub%2Ftailwindlabs%2Freproduction-headlessui-vue%0A%0A**Describe+your+issue**%0A%0ADescribe+the+problem+you%27re+seeing%2C+any+important+steps+to+reproduce+and+what+behavior+you+expect+instead.%0A
     about: If you've already asked for help with a problem and confirmed something is broken with Headless UI itself, create a bug report.
   - name: Documentation Issue
     url: https://github.com/tailwindlabs/headlessui/issues/new?title=%5BDOCS%5D:%20