minor update for windows users (#33)
minor update for windows users (#33)

fix more
d2l-ai/d2l-zh,mli/gluon-tutorials-zh,d2l-ai/d2l-zh,mli/gluon-tutorials-zh,libennext/gluon-tutorials-zh,d2l-ai/d2l-zh,libennext/gluon-tutorials-zh,mli/gluon-tutorials-zh,libennext/gluon-tutorials-zh,mli/gluon-tutorials-zh