meta: add issue template for API reference docs

Prior to this commit, there was no GitHub issue template guiding
users to open issues about gaps in the API reference docs.

Refs: #31123
Closes: nodejs/nodejs.org#2866

.github/ISSUE_TEMPLATE/3-api-ref-docs-problem.md

@@ -0,0 +1,74 @@
+---
+name: "\U0001F4D7 Open an issue regarding the nodejs.org API reference docs"
+about: Let us know about any problematic API reference documents
+title: "doc: "
+labels: doc
+---
+
+# 📗 API Reference Docs Problem
+
+<!--
+Thank you for wanting to make nodejs.org better!
+
+This template is for issues with the Node.js API reference docs.
+
+If you found a problem with nodejs.org beyond the API reference docs, please
+file an issue in our website repo at “https://github.com/nodejs/nodejs.org”.
+
+For the issue title, enter a one-line summary after “doc: ”. If unsure about
+something, please do the best you can.
+
+The “✍️” signifies a request for input.
+
+Version: output of “node -v”
+Platform: output of “uname -a” (UNIX), or version and 32 or 64-bit (Windows)
+Subsystem: if known, please specify affected core module name
+-->
+
+- **Version**: ✍️
+- **Platform**: ✍️
+- **Subsystem**: ✍️
+
+## Problem type
+
+<!-- ✍️ Use “[x]” to mark a selection. -->
+
+- [ ] Missing
+- [ ] Needed
+- [ ] Confusing
+- [ ] Didn't work
+- [ ] Other (<!-- ? Please specify if chosen. -->)
+
+## Location
+
+_Section of the site where the content lives (or should)._
+
+Affected URL(s):
+
+- https://nodejs.org/api/✍️
+
+## Reproduction procedure
+
+_Steps to reproduce the problem_
+
+✍️
+
+## Expected behavior/code
+
+_What you were expecting._
+
+✍️
+
+## Additional information
+
+_Any other information that would be helpful to solve this._
+
+<!-- ? Enter “n/a” if enough details exist elsewhere in this template. -->
+
+✍️
+
+---
+
+<!-- ? Use “[x]” to check the box below if interested in contributing. -->
+
+- [ ] I would like to work on this issue and submit a pull request.