adds what's new entry

bastibe · bastibe · commit a5fbf18d5586 · 2018-05-09T11:36:52.000+02:00
diff --git a/doc/users/next_whats_new/wrapping_colormaps.rst b/doc/users/next_whats_new/wrapping_colormaps.rst
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+Wrapping colormaps
+------------------
+
+Two new colormaps named 'twilight' and 'sunlight' were added. These
+colormaps start and end on the same color, and have two symmetric
+halves with equal lightness, but diverging color. Since they wrap
+around, they are a good choice for cyclic data such as phase angles,
+compass directions, or time of day. Like viridis, twilight and
+sunlight are perceptually uniform and colorblind friendly.
