Merge pull request #25 from arpit1997/master

fix: snippets reserved name shadowing

snippets/is_lower_case.md

@@ -5,8 +5,8 @@ Checks if a string is lower case.
 Convert the given string to lower case, using `str.lower()` method and compare it to the original.
 
 ```python
-def is_lower_case(str):
-    return str == str.lower()
+def is_lower_case(string):
+    return string == string.lower()
 ```
 
 ```python

snippets/is_upper_case.md

@@ -5,8 +5,8 @@ Checks if a string is upper case.
 Convert the given string to upper case, using `str.upper()` method and compare it to the original.
 
 ```python
-def is_upper_case(str):
-    return str == str.upper()
+def is_upper_case(string):
+    return string == string.upper()
 ```
 
 ```python

snippets/max_n.md

@@ -10,8 +10,7 @@ from copy import deepcopy
 
 def max_n(arr, n=1):
     numbers = deepcopy(arr)
-    numbers.sort()
-    numbers.reverse()
+    numbers.sort(reverse=True)
     return numbers[:n]
 ```