Improve README.

README.rst

@@ -38,7 +38,12 @@ Here's the big idea (how you use it):
        run(main())
 
 This package provides a ``run()`` function as the starting point
-of your ``asyncio``-based application.
+of your ``asyncio``-based application. The ``run()`` function will
+run forever. If you want to shut down when ``main()`` completes, just
+call ``loop.stop()`` inside it: that will initiate shutdown.
+
+Why?
+----
 
 The ``run()`` function will handle **everything** that normally needs
 to be done during the shutdown sequence of the application.  All you
@@ -64,7 +69,8 @@ again. So, if you use ``aiorun`` this is what **you** need to remember:
 - Spawn all your work from a single, starting coroutine
 - When a shutdown signal is received, **all** currently-pending tasks
   will have ``CancelledError`` raised internally. It's up to you whether
-  you want to handle this in a ``try/except`` or not.
+  you want to handle this (inside your coroutines) with
+  a ``try/except`` or not.
 - Try to have executor jobs be shortish, since shutdown will wait for them
   to finish. If you need a long-running thread or process tasks, use
   a dedicated thread/subprocess and set ``daemon=True`` instead.

aiorun.py

@@ -17,7 +17,7 @@
 
 
 __all__ = ['run', 'shutdown_waits_for']
-__version__ = '2017.10.5'
+__version__ = '2017.11.1'
 logger = logging.getLogger('aiorun')