Update linear_search.py (#1974)

* Update linear_search.py

Comment modified in line 17 as Sorting not required in Linear Search

* Update linear_search.py

Comment modified in line 17

Author: Himanshu-77

searches/linear_search.py

@@ -14,7 +14,7 @@
 def linear_search(sequence, target):
     """Pure implementation of linear search algorithm in Python
 
-    :param sequence: some sorted collection with comparable items
+    :param sequence: a collection with comparable items (as sorted items not required in Linear Search)
     :param target: item value to search
     :return: index of found item or None if item is not found