update requirements.txt for ipython and sphinx-rtd-theme
@@ -5,6 +5,7 @@ colorama==0.4.1
coverage==4.5.2
cycler==0.10.0
funcsigs==1.0.2
+ipython==7.4.0
kiwisolver==1.0.1
matplotlib==2.2.3
more-itertools==5.0.0
@@ -23,5 +24,6 @@ pytz==2018.9
scandir==1.9.0
six==1.12.0
sphinx-autoapi==1.1.0
+sphinx-rtd-theme==0.4.3
requests
future
\ No newline at end of file
