Merge pull request #5 from x4nth055/dependabot/pip/tensorflow-1.15.0

Bump tensorflow from 1.13.1 to 1.15.0

Author: x4nth055

requirements.txt

@@ -8,4 +8,4 @@ tqdm==4.28.1
 matplotlib==2.2.3
 pyaudio==0.2.11
 keras==2.2.4
-tensorflow==1.13.1
+tensorflow==1.15.0