Update environment.yml

118673e4 · Pham Nguyen Hung · Ricardo Vieira · c6d85d1b · 118673e4
--- a/environment.yml
+++ b/environment.yml
@@ -42,6 +42,7 @@ dependencies:
  - pydot
  - ipython
  - pymc-sphinx-theme
+  - sphinx-design
  # code style
  - ruff
  # developer tools