Fix typos

Author: mhsmith

pth-tester/README.md

@@ -1,10 +1,10 @@
 # pth-tester
 
-This is a package that tests whether `.pth` files are correctly process on
+This is a package that tests whether `.pth` files are correctly processed on
 import. It is not designed to be published; it is only useful in the context of
 the testbed app.
 
-When installed, it includes `.pth` file that invokes the `pth_tester.init()` method.
+When installed, it includes a `.pth` file that invokes the `pth_tester.init()` method.
 This sets the `initialized` attribute of the module to `True`. In this way, it is
 possible to tell if `.pth` handling has occurred on app startup.