Fix pydocstyle errors

Author: wdv4758h

everywhere/__init__.py

@@ -1,6 +1,4 @@
-'''
-project interface
-'''
+"""project interface."""
 
 
 from .base import fib, hello, add42

everywhere/base.py

@@ -1,33 +1,37 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-'''
-basic functions
-'''
+"""basic functions."""
 
 
 def fib(number: int) -> int:
-    '''
+    """
+    Simple Fibonacci function.
+
     >>> fib(10)
     55
-    '''
+    """
     if number < 2:
         return number
     else:
         return fib(number-1) + fib(number-2)
 
 
 def hello() -> str:
-    '''
+    """
+    Simple Hello World.
+
     >>> hello()
     'Hello World'
-    '''
+    """
     return 'Hello World'
 
 
 def add42(number: int) -> int:
-    '''
+    """
+    Add 42 to number.
+
     >>> add42(100)
     142
-    '''
+    """
     return number + 42