Added Whitespace and Docstring (#924)

* Added Whitespace and Docstring

I modified the file to make Pylint happier and make the code more readable.

* Beautified Code and Added Docstring

I modified the file to make Pylint happier and make the code more readable.

* Added DOCSTRINGS, Wikipedia link, and whitespace

I added DOCSTRINGS and whitespace to make the code more readable and understandable.

* Improved Formatting

* Wrapped comments
* Fixed spelling error for `movement` variable
* Added DOCSTRINGs

* Improved Formatting

* Corrected whitespace to improve readability.
* Added docstrings.
* Made comments fit inside an 80 column layout.

maths/average.py

@@ -1,13 +1,20 @@
+"""Find mean of a list of numbers."""
+
+
 def average(nums):
+    """Find mean of a list of numbers."""
     sum = 0
     for x in nums:
-      sum += x
+        sum += x
     avg = sum / len(nums)
     print(avg)
     return avg
 
+
 def main():
-  average([2, 4, 6, 8, 20, 50, 70])
+    """Call average module to find mean of a specific list of numbers."""
+    average([2, 4, 6, 8, 20, 50, 70])
+
 
 if __name__ == '__main__':
-  main()
+    main()