Update Cloud.com

Author: sureshanaparti

source/adminguide/usage.rst

@@ -787,7 +787,7 @@ The following table shows all usage types.
 | 4                | NETWORK\_BYTES\_SENT              | Tracks the total            |
 |                  |                                   | number of bytes sent        |
 |                  |                                   | by all the Instances for an |
-|                  |                                   | account. Cloud.com          |
+|                  |                                   | account. CloudStack         |
 |                  |                                   | does not currently          |
 |                  |                                   | track Network traffic       |
 |                  |                                   | per Instance.               |
@@ -796,7 +796,7 @@ The following table shows all usage types.
 |                  |                                   | number of bytes             |
 |                  |                                   | received by all the         |
 |                  |                                   | Instances for an account.   |
-|                  |                                   | Cloud.com does not          |
+|                  |                                   | CloudStack does not         |
 |                  |                                   | currently track             |
 |                  |                                   | Network traffic per         |
 |                  |                                   | Instance.                   |
@@ -837,7 +837,7 @@ The following table shows all usage types.
 |                  |                                   | policy has been             |
 |                  |                                   | created to the time         |
 |                  |                                   | it has been removed.        |
-|                  |                                   | Cloud.com does not          |
+|                  |                                   | CloudStack does not         |
 |                  |                                   | track whether an Instance   |
 |                  |                                   | has been assigned to        |
 |                  |                                   | a policy.                   |