comment on nHeader != nHeaderSuggested warning

src/icartt/dataset.py

@@ -712,6 +712,8 @@ class Dataset:
 
         self.nHeaderFile = f.line
 
+        # TODO this warning might be missleading since it assumes all normalComment keywords
+        #      had been defined - which is not guaranteed.
         if self.nHeader != nHeaderSuggested:
             warnings.warn(
                 f"Number of header lines suggested in line 1 ({int(nHeaderSuggested)}) do not match actual header lines read ({int(self.nHeader)})"