Upgrade quantecon-book-theme to 0.12.0 with git metadata (#726)

* TEST: Install theme from enh/improve-lecture-header-328 branch and add path_to_docs config

* Upgrade quantecon-book-theme to 0.12.0

Author: mmcky

environment.yml

@@ -7,7 +7,7 @@ dependencies:
   - pip
   - pip:
     - jupyter-book==1.0.4post1
-    - quantecon-book-theme==0.11.0
+    - quantecon-book-theme==0.12.0
     - sphinx-tojupyter==0.4.0
     - sphinxext-rediraffe==0.2.7
     - sphinx-exercise==1.2.0

lectures/_config.yml

@@ -83,6 +83,7 @@ sphinx:
       header_organisation: QuantEcon
       repository_url: https://github.com/QuantEcon/lecture-python.myst
       nb_repository_url: https://github.com/QuantEcon/lecture-python.notebooks
+      path_to_docs: lectures
       twitter: quantecon
       twitter_logo_url: https://assets.quantecon.org/img/qe-twitter-logo.png
       og_logo_url: https://assets.quantecon.org/img/qe-og-logo.png