Clarify accounting database configuration

this adds another instruction to the grant all on slurm_acct_db.*  TO 'slurm'@'system0';  where system0 is the hostname.  Our users have add errors from mysql  as shown below where it needs to be applied for both localhost and the hostname
From Nancy Kritkausky, Bull

doc/html/accounting.shtml

@@ -394,7 +394,7 @@ usage there is a line that starts with '->'. This a continuation
 prompt since the previous mysql statement did not end with a ';'. It
 assumes that you wish to input more info.)</p>
 
-live example:
+<p>live example:</p>
 
 <pre>
 mysql@snowflake:~$ mysql
@@ -406,24 +406,40 @@ Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
 
 mysql> grant all on slurm_acct_db.* TO 'slurm'@'localhost';
 Query OK, 0 rows affected (0.00 sec)
+</pre>
 
-or with a password...
-
+<p>You may also need to do the same with the system name in order
+for mysql to work correctly:</p>
+<pre>
+mysql> grant all on slurm_acct_db.* TO 'slurm'@'system0';
+Query OK, 0 rows affected (0.00 sec)
+where 'system0' is the localhost or database storage host.
+</pre>
+<p>or with a password...</p>
+<pre>
 mysql> grant all on slurm_acct_db.* TO 'slurm'@'localhost'
     -> identified by 'some_pass' with grant option;
 Query OK, 0 rows affected (0.00 sec)
 </pre>
 
-<p>This will grant user 'slurm' access to do what it needs to do on
-the local host. This should be done before the SlurmDBD will work
-properly. After you grant permission to the Slurm user in mysql then
-you can start SlurmDBD and Slurm. You start SlurmDBD by typing
-'slurmdbd'. You can verify that SlurmDBD is running by typing 'ps aux
-| grep slurmdbd'. After SlurmDBD and the slurmctld start you can
-verify that the database was created by using the mysql command 'show
-databases;'. You can display the tables that slurm created in the
-database by using the mysql command 'use slurm_acct_db;' and then 'show
-tables;'.</p>
+<p>The same is true in the case, you made to do the same with the 
+system name:</p>
+<pre>
+mysql> grant all on slurm_acct_db.* TO 'slurm'@'system0'
+    -> identified by 'some_pass' with grant option;
+where 'system0' is the localhost or database storage host.
+</pre>
+
+<p>This will grant user 'slurm' access to do what it needs to do on the local
+host or the storage host system.  This must be done before the SlurmDBD will
+work properly. After you grant permission to the user 'slurm' in mysql then
+you can start SlurmDBD and the other SLURM daemons. You start SlurmDBD by
+typing its pathname '/usr/sbin/slurmdbd' or '/etc/init.d/slurmdbd start'. You
+can verify that SlurmDBD is running by typing 'ps aux | grep slurmdbd'. After 
+the SlurmDBD and slurmctld daemons start, you can verify that the database
+was created by using the mysql command 'show databases;'. You can display the
+tables that slurm created in the database by using the mysql command
+'use slurm_acct_db;' and then 'show tables;'.</p>
 
 <p>Use the mysql 'show databases;' command</p>