Fix doc build

benjeffery · benjeffery · commit 818364ba0756 · 2023-04-19T14:30:34.000+01:00
diff --git a/docs/_config.yml b/docs/_config.yml
@@ -36,6 +36,7 @@ sphinx:
     - sphinx.ext.intersphinx
     - sphinx_issues
     - sphinxarg.ext
+    - IPython.sphinxext.ipython_console_highlighting
 
     config:
       html_theme: tskit_book_theme
