little grammar changes

Resolves: #95

Author: willardgibbs

README.md

@@ -953,19 +953,19 @@ This section provides a description of metrics related to MQGET, MQCB and MQCTL
 <tr>
 <td>mqobject_get_average_destructive_mqget_persistent_message_size_bytes</td>
 <td>gauge</td>
-<td>Shows a average amount of bytes per persistent message that are returned to MQGET.</td>
+<td>Shows an average amount of bytes per persistent message that are returned by MQGET.</td>
 <td>destructive MQGET persistent average message byte count</td>
 </tr>
 <tr>
 <td>mqobject_get_average_destructive_mqget_non_persistent_message_size_bytes</td>
 <td>gauge</td>
-<td>Shows a average amount of bytes per non-persistent message that are returned to MQGET.</td>
+<td>Shows an average amount of bytes per non-persistent message that are returned by MQGET.</td>
 <td>destructive MQGET non-persistent average message byte count</td>
 </tr>
 <tr>
 <td>mqobject_get_average_destructive_mqget_persistent_and_non_persistent_message_size_bytes</td>
 <td>gauge</td>
-<td>Shows a average amount of bytes per persistent and non-persistent messages that are returned to MQGET.</td>
+<td>Shows an average amount of bytes per persistent and non-persistent messages that are returned by MQGET.</td>
 <td>destructive MQGET persistent and non-persistent average message byte count</td>
 </tr>
 </tbody>