Merge pull request #62 from asingh33/dependabot/pip/tensorflow-1.15.4

Bump tensorflow from 1.15.2 to 1.15.4

Author: asingh33

requirements.txt

@@ -29,7 +29,7 @@ scipy==1.2.1
 six==1.12.0
 sklearn==0.0
 tensorboard==1.13.1
-tensorflow==1.15.2
+tensorflow==1.15.4
 tensorflow-estimator==1.13.0
 termcolor==1.1.0
 werkzeug==0.15.3