Add NER training docs
"Custom tokenization": "customizing-tokenizer",
"Training": "training",
"Adding languages": "adding-languages"
+ "Training NER": "training-ner",
},
"Examples": {
"Tutorials": "tutorials",
"training": {
"title": "Training the tagger, parser and entity recognizer"
+ "training-ner": {
+ "title": "Training the Named Entity Recognizer",
+ "next": "saving-loading"
+ },
},
"pos-tagging": {
