pep-0492: Fixes, edits.

pep-0492.txt

@@ -480,13 +480,13 @@ Glossary
     Returned from a coroutine function. See `Await Expression`_ for details.
 
 :Future-like object:
-    An object with an ``__await__`` method.  It is consumed by ``await`` in a
-    coroutine. A coroutine waiting for a Future-like object is suspended until
-    the Future-like object's ``__await__`` completes.  ``await`` returns the
-    result of the Future-like object.  See `Await Expression`_ for details.
+    An object with an ``__await__`` method.  Can be consumed by an ``await``
+    expression in a coroutine. A coroutine waiting for a Future-like object is
+    suspended until the Future-like object's ``__await__`` completes, and
+    returns the result.  See `Await Expression`_ for details.
 
 :Awaitable:
-    A *future-like* object or a *coroutine object*.  See `Await Expression`_
+    A *Future-like* object or a *coroutine object*.  See `Await Expression`_
     for details.
 
 :Generator-based coroutine:
@@ -516,7 +516,7 @@ Method            Can contain                              Can't contain
 ================= =======================================  =================
 async def func    await, return value                      yield, yield from
 async def __a*__  await, return value                      yield, yield from
-def __a*__        return Future-like                       await
+def __a*__        return awaitable                         await
 def __await__     yield, yield from, return iterable       await
 generator         yield, yield from, return value          await
 ================= =======================================  =================