[grilo] docs: Fix grammar in plugins-testing

[Murray Cumming <murrayc src gnome org>]

commit 313cbc583ec5620a4224d83950b6ced0ff9a60cb
Author: Murray Cumming <murrayc murrayc com>
Date:   Tue Nov 13 10:27:41 2012 +0100

    docs: Fix grammar in plugins-testing

 doc/grilo/plugins-testing.xml |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/doc/grilo/plugins-testing.xml b/doc/grilo/plugins-testing.xml
index 52462fc..151c1fc 100644
--- a/doc/grilo/plugins-testing.xml
+++ b/doc/grilo/plugins-testing.xml
@@ -101,15 +101,15 @@ $ export GRL_DEBUG="registry:*"
     <title>Simulating Network Replies</title>
 
     <para>
-      For for offline testing of plug-ins, especially in automated tests it is
-      useful to simulate and reply predefined network replies. Therefore Grilo
+      For offline testing of plug-ins, particularly in automated tests, it is
+      useful to simulate and return predefined network replies. Therefore, Grilo
       provides a few facilities for mocking network replies.
     </para>
 
     <para>
-      To enable mocking set the environment variable GRL_NET_MOCKED. The value
-      of this variable is interpreted as path of the mock configuration file to
-      use. This file is a simple .ini file is used which is  The file is split
+      To enable mocking, set the environment variable GRL_NET_MOCKED. The value
+      of this variable is interpreted as the path of the mock configuration file to
+      use. This file is a simple .ini file, split
       into a "default" section and one section per URL to mock.
     </para>
 
@@ -125,9 +125,9 @@ timeout = 500
 
     <para>
       An easy way to capture the responses is to run your application with the
-      environment variable GRL_NET_CAPTURE_DIR. GrlNetWc will then write all
+      environment variable GRL_NET_CAPTURE_DIR. GrlNetWc will then write
       each response into a file following the pattern "url-timestamp". If the
-      directory does not exist yet it will be created.
+      directory does not exist yet then it will be created.
     </para>
 
     <section>