Final fixes to recipes for Sphinx Gallery proper rendering

Author: sadielbartholomew

docs/source/recipes/plot_19_recipe.py

@@ -55,7 +55,7 @@
 # of the maxima, we loop through the season query mapping and do a
 # "T: mean" collapse setting the season as the grouping:
 cfp.gopen(
-    rows=2, columns=1, bottom=0.1, top=0.85, file="recipe_19.png"
+    rows=2, columns=1, bottom=0.1, top=0.85,
 )
 cfp.gpos(1)
 cfp.gset(xmin="1980-01-01", xmax="2022-12-01", ymin=304, ymax=312)

docs/source/recipes/plot_20_recipe.py

@@ -74,7 +74,7 @@
 # the data which can be positive or negative, i.e. has 0 as the 'middle'
 # value of significance, so should use a diverging colour map.
 cfp.mapset(resolution="10m")
-cfp.cscale("ncl_default", ncols=25)
+cfp.cscale("ncl_default", ncols=21)
 
 # %%
 # 9. Now generate the final plot. Plot the current vectors, noting we had