add comment about changing log level in general
<!-- how much to read to memory during the digest phase before
spooling to disc...only if digest is selected -->
<digestMarkLimit>1000000</digestMarkLimit>
- <!-- request URI log level 'debug' or 'info' -->
+ <!-- request URI log level 'debug' or 'info'; to change the general log level,
+ edit the "log4j2.xml" file. -->
<logLevel>info</logLevel>
<!-- whether or not to include the stacktrace when a parse exception happens
in the data returned to the user -->
