Merge pull request barbarer#173 from xinyinghou/master

FIxed the warning in puzzle_bank page

Author: barbarer

_sources/_hidden/mooc_nested_dict/puzzle_bank.rst

@@ -62,10 +62,10 @@
     :practice: T
 
     Finish the function ``get_vegetarian_menu(menu_items):`` below:
-    - It takes a list of tuples ``menu_items`` as input, each tuple contains ``(name, category, price, is_vegetarian)``.
-    - It returns a new nested dictionary that only contains the items from  ``menu_items`` where ``is_vegetarian`` is ``True``.
-        - The outer dictionary keys are ``category`` such as "Soup", "Pizza", "Pasta", "Salad".
-        - The inner dictionary keys are ``name`` and values are ``price`` for each vegetarian item of that ``category``.
+        - It takes a list of tuples ``menu_items`` as input, each tuple contains ``(name, category, price, is_vegetarian)``.
+        - It returns a new nested dictionary that only contains the items from  ``menu_items`` where ``is_vegetarian`` is ``True``.
+            - The outer dictionary keys are ``category`` such as "Soup", "Pizza", "Pasta", "Salad".
+            - The inner dictionary keys are ``name`` and values are ``price`` for each vegetarian item of that ``category``.
     -----
     def get_vegetarian_menu(menu_items):
     =====
@@ -90,10 +90,10 @@
     :practice: T
 
     Finish the function ``get_vegetarian_menu(menu_items):`` below:
-    - It takes a list of tuples ``menu_items`` as input, each tuple contains ``(name, category, price, is_vegetarian)``.
-    - It returns a new nested dictionary that only contains the items from  ``menu_items`` where ``is_vegetarian`` is ``True``.
-        - The outer dictionary keys are ``category`` such as "Soup", "Pizza", "Pasta", "Salad".
-        - The inner dictionary keys are ``name`` and values are ``price`` for each vegetarian item of that ``category``.
+        - It takes a list of tuples ``menu_items`` as input, each tuple contains ``(name, category, price, is_vegetarian)``.
+        - It returns a new nested dictionary that only contains the items from  ``menu_items`` where ``is_vegetarian`` is ``True``.
+            - The outer dictionary keys are ``category`` such as "Soup", "Pizza", "Pasta", "Salad".
+            - The inner dictionary keys are ``name`` and values are ``price`` for each vegetarian item of that ``category``.
     -----
     def get_order_totals(orders):
     =====