[coreboot] RCA RM4100 Build Tutorial

Hello,
I added a Build Tutorial to the wiki:
http://www.coreboot.org/RCA_RM4100_Build_Tutorial
and linked it to the Supported Motherboards page.
I am going to send some users from my website to try it out. Some of  
the info may be redundent but it is meant for a coreboot newby?
Does it look like newby material?

Thanks - Joe