[github] Link out to Apple’s Feedback Assistant in issue templates

Author: AnthonyLatsis

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,6 +7,14 @@ assignees: ''
 
 ---
 
+<!--
+This repository tracks issues related to the implementation of the Swift
+compiler, standard library, runtime, and tools that provide IDE support for
+Swift (e.g. code completion). If the bug relates to the implementation of a
+proprietary (closed-source) Apple framework such as UIKit, SwiftUI, Combine,
+etc., please report it to https://feedbackassistant.apple.com instead.
+-->
+
 **Describe the bug**
 A clear and concise description of what the bug is.
 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,6 +7,15 @@ assignees: ''
 
 ---
 
+<!--
+This repository tracks issues and requests related to the implementation of the
+Swift compiler, standard library, runtime, and tools that provide IDE support
+for Swift (e.g. code completion). If your feature request relates to the
+implementation of a proprietary (closed-source) Apple framework such as UIKit,
+SwiftUI, Combine, etc., please report it to https://feedbackassistant.apple.com
+instead.
+-->
+
 **Is your feature request related to a problem? Please describe.**
 A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]