Merge pull request #6 from QuantEcon/update_config

Update Intersphinx Syntax

Author: mmcky

lectures/_config.yml

@@ -94,15 +94,28 @@ sphinx:
 
       launch_buttons:
         colab_url                 : https://colab.research.google.com
-    intersphinx_mapping: {
-      'intro':    [https://intro.quantecon.org/, null],
-      'dle':      [https://quantecon.github.io/lecture-dle/, null],
-      'dps':      [https://quantecon.github.io/lecture-dps/, null],
-      'eqm':      [https://quantecon.github.io/lecture-eqm/, null],
-      'stats':    [https://quantecon.github.io/lecture-stats/, null],
-      'tools':    [https://quantecon.github.io/lecture-tools-techniques/, null],
-      'dynam':    [https://quantecon.github.io/lecture-dynamics/, null]
-      }
+    intersphinx_mapping:
+      intro: 
+        - https://intro.quantecon.org/
+        - null
+      dle:
+        - https://quantecon.github.io/lecture-dle/
+        - null
+      dps:
+        - https://quantecon.github.io/lecture-dps/
+        - null
+      eqm:
+        - https://quantecon.github.io/lecture-eqm/
+        - null
+      stats:
+        - https://quantecon.github.io/lecture-stats/
+        - null
+      tools:
+        - https://quantecon.github.io/lecture-tools-techniques/
+        - null
+      dynam:
+        - https://quantecon.github.io/lecture-dynamics/
+        - null
     mathjax3_config:
       tex:
         macros: