add requirements.txt

requirements.txt

@@ -0,0 +1,11 @@
+azure_storage==0.36.0
+fastai2==0.0.11
+graphviz==0.13.2
+ipywidgets==7.5.1
+matplotlib==3.1.3
+msrest==0.6.11
+nbdev==0.2.12
+pandas==1.0.1
+scikit_learn==0.22.2
+scipy==1.4.1
+azure-cognitiveservices-search-imagesearch==2.0.0