Check list before using eMFD

[uless]

1. SpaCy version should be 3.4.0. (as per my ticket 2 years ago)
   Otherwise you will see this:
   Pipeline component 'mfd_tokenizer' returned <class 'list'> instead of a Doc. If you're using a custom component, maybe you forgot to return the processed Doc?

2. Pandas version should be lower than 2.0.0 (worked with version 1.5.3)
   Otherwise you will see this:
   ``AttributeError: 'Series' object has no attribute 'iteritems'

3. Input dataframe should be heading-less.
   Just do it, make your input dataframe looks exactly like the template.