repaired broken link for default arguments filename

Author: arsho

BasicDataTypes/SetsSymmetricDifference.py

@@ -2,7 +2,7 @@ Introduction
 ["Say Hello, World! With Python", "Reading Raw Input", "Python If-Else", "Arithmetic Operators", "Python: Division", "Loops", "Write a function", "Print Function"]
 
 Basic Data Types
-["Lists", "Tuples", "Sets - Symmetric Difference", "List Comprehensions", "Find the Second Largest Number", "Nested Lists", "Finding the percentage"]
+["Lists", "Tuples", "List Comprehensions", "Find the Second Largest Number", "Nested Lists", "Finding the percentage"]
 
 Strings
 ["sWAP cASE", "String Split and Join", "Whats Your Name?", "Mutations", "Find a string", "String Validators", "Text Alignment", "Text Wrap", "Designer Door Mat", "String Formatting", "Alphabet Rangoli", "Capitalize!", "The Minion Game"]

Debugging/DefaultArguments .py renamed to Debugging/DefaultArguments.py

@@ -11,7 +11,6 @@
 - Basic Data Types
    - [Lists](BasicDataTypes/Lists.py)
    - [Tuples](BasicDataTypes/Tuples.py)
-   - [Sets - Symmetric Difference](BasicDataTypes/SetsSymmetricDifference.py)
    - [List Comprehensions](BasicDataTypes/ListComprehensions.py)
    - [Find the Second Largest Number](BasicDataTypes/FindtheSecondLargestNumber.py)
    - [Nested Lists](BasicDataTypes/NestedLists.py)

HackerrankUtility/python_info.txt

@@ -30,7 +30,6 @@ My solutions of <strong>Hackerrank Python Domain</strong> challenges. The codes
 - Basic Data Types
    - [Lists](BasicDataTypes/Lists.py)
    - [Tuples](BasicDataTypes/Tuples.py)
-   - [Sets - Symmetric Difference](BasicDataTypes/SetsSymmetricDifference.py)
    - [List Comprehensions](BasicDataTypes/ListComprehensions.py)
    - [Find the Second Largest Number](BasicDataTypes/FindtheSecondLargestNumber.py)
    - [Nested Lists](BasicDataTypes/NestedLists.py)