Theme update

TODO:

• fix plotly aspect ratio (see here

Closes #119 (closed), #105 (closed)

docs/10_xray.md

@@ -24,7 +24,6 @@ import matplotlib.patches as patches
 import matplotlib.transforms as mtransforms
 import matplotlib.image as img 
 
-import plotly.offline as py
 from plotly.subplots import make_subplots
 import plotly.graph_objs as go