RP2040: Fix compiler warning and comment (#509)

[freertos] / .github / ISSUE_TEMPLATE / documentation-issue.md

---
name: Documentation issue
about: Create a report to help us improve our documentation.
title: "[DOC]"
labels: documentation
assignees: ''

---

**Describe the issue**
Please describe the issue and expected clarification in concise language.

**Reference**
Please attach the URL at which you are experiencing the issue. 

**Screenshot**
If applicable, please attach screenshot.

**Browser**
- Browser: [e.g. Chrome]
- Version: [e.g. 80.0.3987.132]

<!-- For general inquiries, please post in [FreeRTOS forum](https://forums.FreeRTOS.org) for community support. -->