Add open question for DNS label process types

Signed-off-by: Josh W Lewis <josh.w.lewis@gmail.com>

Author: joshwlewis

text/0000-dns-label-process-types.md

@@ -104,8 +104,12 @@ N/A
 # Unresolved Questions
 
 - Are there additional resources in the spec that should also have this restriction?
+
   - Image names? (probably not, given it's common to use url-based image names with periods and slashes)
 
+- Is this change worth creating a new Buildpack API version?
+  - Maybe not on it's own, but perhaps it could be bundled with other features.
+
 # Spec. Changes (OPTIONAL)
 
 This change will require changes to the Buildpack API spec.