MNT: rename style

See discussion in mpetroff/accessible-color-cycles#1

Co-authored-by: Matthew Feickert <matthew.feickert@cern.ch>

Author: 2 people

doc/users/next_whats_new/ccs_color_cycle.rst

@@ -1,7 +1,7 @@
 New more-accessible color cycle
 -------------------------------
 
-A new color cycle named 'ccs10' was added. This cycle was constructed using a
+A new color cycle named 'petroff10' was added. This cycle was constructed using a
 combination of algorithmically-enforced accessibility constraints, including
 color-vision-deficiency modeling, and a machine-learning-based aesthetics model
 developed from a crowdsourced color-preference survey. It aims to be both
@@ -13,7 +13,7 @@ is included in the style sheets reference_. To load this color cycle in place
 of the default::
 
   import matplotlib.pyplot as plt
-  plt.style.use('ccs10')
+  plt.style.use('petroff10')
 
 .. _reference: https://matplotlib.org/gallery/style_sheets/style_sheets_reference.html
 .. _SciPy talk: https://www.youtube.com/watch?v=Gapv8wR5DYU