Increase page max width to show more content when possible (#5523) (#5654)

(cherry picked from commit 7700126)

Signed-off-by: Christophe Bedard <[email protected]>
Co-authored-by: Christophe Bedard <[email protected]>

Author: mergify[bot]

conf.py

@@ -165,11 +165,14 @@
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-# html_static_path = ['_static']
+html_static_path = ['source/_static']
 
 # Drop any source link suffix
 html_sourcelink_suffix = ''
 
+# Relative to html_static_path
+html_css_files = ['custom.css']
+
 # -- Options for HTMLHelp output ------------------------------------------
 
 # Output file base name for HTML help builder.

source/_static/custom.css

@@ -0,0 +1,3 @@
+.wy-nav-content {
+    max-width: 64rem;
+}