Update readme.md

Author: koaning

readme.md

@@ -44,9 +44,9 @@ The following components are implemented;
 
 ### Dense Featurizers
 
-- `rasa_nlu_examples.featurizers.dense.GensimFeaturizer`: pretrained [Gensim](https://radimrehurek.com/gensim/) embeddings 
-- `rasa_nlu_examples.featurizers.dense.FastTextFeaturizer`: pretrained [FastText](https://fasttext.cc/) embeddings for 157 languages
-- `rasa_nlu_examples.featurizers.dense.BytePairFeaturizer`: pretrained [BytePair](https://nlp.h-its.org/bpemb/) embeddings for 275 languages
+- `rasa_nlu_examples.featurizers.dense.GensimFeaturizer`: custom [Gensim](https://radimrehurek.com/gensim/) embeddings 
+- `rasa_nlu_examples.featurizers.dense.FastTextFeaturizer`: [FastText](https://fasttext.cc/) embeddings for 157 languages
+- `rasa_nlu_examples.featurizers.dense.BytePairFeaturizer`: [BytePair](https://nlp.h-its.org/bpemb/) embeddings for 275 languages
 
 ### Tokenizers