Fix build with Sphinx 4. (zarr-developers#799)

QuLogic · joshmoore · web-flow · commit f1afc575953d · 2021-08-03T11:17:42.000+02:00
`add_stylesheet` was deprecated in 1.8 and removed in 4.0 [1]. The replacement, `add_css_file` was added in 1.0. [1] https://www.sphinx-doc.org/en/master/extdev/deprecated.html?highlight=add_stylesheet Co-authored-by: Josh Moore <j.a.moore@dundee.ac.uk>
diff --git a/docs/conf.py b/docs/conf.py
@@ -144,9 +144,11 @@
 # of the sidebar.
 html_logo = '_static/logo1.png'
 
+
 # Add custom css
 def setup(app):
-    app.add_stylesheet('custom.css')
+    app.add_css_file('custom.css')
+
 
 # The name of an image file (relative to this directory) to use as a favicon of
 # the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
