Fix release notes for release candidates

pkg.sh

@@ -773,7 +773,11 @@ elif [ "$step" == "release" ]; then
 
   # Prepare the text to be used for the release notes for the new tag
   # Release notes support gitlab-flavoured markdown (GFM)
-  rln="- Go to the *[README](https://gitlab.cern.ch/${prj}/blob/${tag}/README-${brn}.md)* for release ${tag}"
+  if ${is_rc}; then
+    rln="- Go to the *[QA-stage description](https://gitlab.cern.ch/${prj}/blob/${tag}/QA-${brn}.md)* for release candidate ${tag}"
+  else
+    rln="- Go to the *[README](https://gitlab.cern.ch/${prj}/blob/${tag}/README-${brn}.md)* for release ${tag}"
+  fi
   if [ "${brn#ubuntu}" != ${brn} ]; then
     # === CASE 1: UBUNTU
     rln="${rln}\n- Read the *[changelog](https://gitlab.cern.ch/${prj}/blob/${tag}/files/changelog)*"