Update README.md

Co-authored-by: Doug Gregor <dgregor@apple.com>

Author: keith

README.md

@@ -104,7 +104,7 @@ into your `WORKSPACE` and depend on the libraries you need from the
 `Library_opt` target (such as `SwiftSyntax_opt`) which forces
 SwiftSyntax to always build with optimizations enabled. This may help
 local runtime performance at the cost of debuggability, and initial
-build time.
+build time. Please tag any [issues](https://github.com/apple/swift-syntax/issues) related to the Bazel configuration with the label "Bazel".
 
 ## License