issue #589: ensure real FileService/PushFileService are in the docs

docs/services.rst

@@ -83,6 +83,11 @@ Reference
 .. autoclass:: mitogen.service.Service
     :members:
 
+.. autoclass:: mitogen.service.FileService
+    :members:
+.. autoclass:: mitogen.service.PushFileService
+    :members:
+
 .. autoclass:: mitogen.service.Pool
     :members:
 

mitogen/service.py

@@ -625,7 +625,7 @@ class PushFileService(Service):
     """
     Push-based file service. Files are delivered and cached in RAM, sent
     recursively from parent to child. A child that requests a file via
-    :meth:`get` will block until it has ben delivered by a parent.
+    :meth:`get` will block until it has been delivered by a parent.
 
     This service will eventually be merged into FileService.
     """