Fix example config typo for transformer architecture
@@ -409,7 +409,7 @@ a single token vector given zero or more wordpiece vectors.
>
> ```ini
> [model]
-> @architectures = "spacy.Tok2VecTransformer.v1"
+> @architectures = "spacy-transformers.Tok2VecTransformer.v1"
> name = "albert-base-v2"
> tokenizer_config = {"use_fast": false}
> grad_factor = 1.0
