Fix initial example in EntityRuler API docs
@@ -23,7 +23,7 @@ be a token pattern (list) or a phrase pattern (string). For example:
>
> ```python
> # Construction via create_pipe
-> ruler = nlp.create_pipe("entityruler")
+> ruler = nlp.create_pipe("entity_ruler")
>
> # Construction from class
> from spacy.pipeline import EntityRuler
