[coreboot-gerrit] Change in coreboot[master]: Documentation: Explain DDR3 read training

[Paul Menzel (Code Review)]

Paul Menzel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/32334 )

Change subject: Documentation: Explain DDR3 read training
......................................................................

Patch Set 1:

(2 comments)

https://review.coreboot.org/c/coreboot/+/32334/1//COMMIT_MSG 
Commit Message:

PS1: 
Please use the full text width of 75 characters.

https://review.coreboot.org/c/coreboot/+/32334/1//COMMIT_MSG@13 
PS1, Line 13: explenation
explanation