Add training 101
@@ -252,6 +252,12 @@ include _spacy-101/_serialization
include _spacy-101/_training
++infobox
+ | To learn more about #[strong training and updating] models, how to create
+ | training data and how to improve spaCy's named entity recognition models,
+ | see the usage guides on #[+a("/docs/usage/training") training] and
+ | #[+a("/docs/usage/training-ner") training the named entity recognizer].
+
+h(2, "architecture") Architecture
+under-construction
