docs to logging

src/agora/logging.py

-#!/usr/bin/env jupyter
-"""
-Add general logging functions and decorators
-"""
-
 import logging
 from time import perf_counter
 
 
 def timer(func):
-    # Log duration of a function into aliby logfile
+    """Log duration of a function into the aliby log file."""
+
     def wrap_func(*args, **kwargs):
         t1 = perf_counter()
         result = func(*args, **kwargs)