Update formatting and description in all_unique

snippets/all_unique.md

@@ -3,9 +3,9 @@ title: all_unique
 tags: list,beginner
 ---
 
-Returns `True` if all the values in a flat list are unique, `False` otherwise.
+Returns `True` if all the values in a list are unique, `False` otherwise.
 
-Use `set()` on the given list to remove duplicates, compare its length with the length of the list.
+Use `set()` on the given list to remove duplicates, use `len()` to compare its length with the length of the list.
 
 ```py
 def all_unique(lst):
@@ -13,8 +13,8 @@ def all_unique(lst):
 ```
 
 ```py
-x = [1,2,3,4,5,6]
-y = [1,2,2,3,4,5]
+x = [1, 2, 3, 4, 5, 6]
+y = [1, 2, 2, 3, 4, 5]
 all_unique(x) # True
 all_unique(y) # False
-```
+```