Merge remote-tracking branch 'origin/main' into pr-322

# Conflicts:
#	environment.yml

Author: mmcky

environment.yml

@@ -13,7 +13,7 @@ dependencies:
     - sphinx-exercise==1.2.1
     - sphinx-proof==0.4.0
     - sphinxcontrib-youtube==1.5.0
-    - sphinx-togglebutton==0.4.4
+    - sphinx-togglebutton==0.4.5
     - sphinx-reredirects==1.1.0
     - kaleido
 

lectures/_config.yml

@@ -31,7 +31,7 @@ latex:
       targetname: quantecon-python-advanced.tex
 
 sphinx:
-  extra_extensions: [sphinx_multitoc_numbering, sphinxext.rediraffe, sphinx_tojupyter, sphinx_exercise, sphinx_togglebutton, sphinx_proof]
+  extra_extensions: [sphinx_multitoc_numbering, sphinxext.rediraffe, sphinx_tojupyter, sphinx_exercise, sphinx_togglebutton, sphinx_proof, sphinx.ext.intersphinx]
   config:
     intersphinx_mapping:
       intro: