Update README.md

fixed import statement for tokenization

README.md

@@ -65,7 +65,7 @@ import re
 import os
 import time
 from gliner import GLiNER
-from ner_tokenization import NerTokenization
+from aviation_ner_sdr.ner_tokenization import NerTokenization
 
 class NERTagging:
     labels = ["b-prod", "i-prod", "b-loc", "i-loc", "b-pcon", "i-pcon", "b-sit", "i-sit", "b-act", "i-act", "b-bird", "i-bird", "b-flt", "i-flt"]