Craco version bump

Jan Bobolz · web-flow · commit fd1db7c1dd78 · 2023-01-12T15:04:13.000+01:00
diff --git a/_config.yml b/_config.yml
@@ -28,7 +28,7 @@ kramdown:
     auto_ids: true
     hard_wrap: false
 
-cracomajorversion: 3
+cracomajorversion: 4
 mathmajorversion: 3
 
 # exclude from jekyll site
