add comment on psipred predictions

actions/pm-build-model

@@ -49,6 +49,8 @@ try:
     # get raw model
     mhandle = modelling.BuildRawModel(opts.alignments)
     # add profiles if any
+    # no psipred predictions are added, as the default modelling pipeline
+    # we're using here never looks at them
     if len(opts.profiles) > 0:
         modelling.SetSequenceProfiles(mhandle, opts.profiles)
     # build final model