check dims before calling blis.gemm (#405)
check dims before calling blis.gemm (#405)

* check dims before calling blis.gemm

* exactly 2D

* exactly 2D
explosion/thinc,spacy-io/thinc,spacy-io/thinc,explosion/thinc,explosion/thinc,spacy-io/thinc,explosion/thinc