README: document __init__-level import

Author: Will Roberts

README.rst

@@ -11,7 +11,8 @@ A small Python library to parse various kinds of time expressions,
 inspired by
 `this StackOverflow question <http://stackoverflow.com/questions/4628122/how-to-construct-a-timedelta-object-from-a-simple-string>`_.
 
-The single function ``timeparse`` defined in the module parses time
+The single function ``pytimeparse.timeparse.timeparse`` defined in the
+library (also available as ``pytimeparse.parse``) parses time
 expressions like the following:
 
 - ``32m``
@@ -51,17 +52,17 @@ expressions like the following:
 It returns the time as a number of seconds (an integer value if
 possible, otherwise a floating-point number)::
 
-    >>> from pytimeparse.timeparse import timeparse
-    >>> timeparse('1.2 minutes')
+    >>> from pytimeparse import parse
+    >>> parse('1.2 minutes')
     72
 
 A number of seconds can be converted back into a string using the
 ``datetime`` module in the standard library, as noted in
 `this other StackOverflow question <http://stackoverflow.com/questions/538666/python-format-timedelta-to-string>`_::
 
-    >>> from pytimeparse.timeparse import timeparse
+    >>> from pytimeparse import parse
     >>> import datetime
-    >>> timeparse('1 day, 14:20:16')
+    >>> parse('1 day, 14:20:16')
     138016
     >>> str(datetime.timedelta(seconds=138016))
     '1 day, 14:20:16'