update environment

Author: mmcky

environment.yml

@@ -8,7 +8,7 @@ dependencies:
   - pip:
     - jupyter-book
     - sphinx-multitoc-numbering
-    - git+https://github.com/quantecon/quantecon-book-theme
+    - quantecon-book-theme
     - sphinx-tojupyter
     - sphinxext-rediraffe
     - sphinx-exercise
@@ -17,5 +17,4 @@ dependencies:
     - jupinx
     # Temporary Fixes
     - tornado>=6.1
-    - git+https://github.com/quantecon/QuantEcon.py.git@new-version