[coreboot-gerrit] Change in coreboot[master]: util/util_readme: Update summary and tail to match current docs

[Tom Hiller (Code Review)]

Attention is currently required from: Martin Roth.
Tom Hiller has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/48963 )

Change subject: util/util_readme: Update summary and tail to match current docs
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Patch Set 2:

(1 comment)

File util/util_readme/util_readme.sh:

https://review.coreboot.org/c/coreboot/+/48963/comment/4692523d_6549e7a8 
PS1, Line 45: cat "${UTIL_README_DIR}/bottom_text.md" >> "$DOCMENTATION_DIR/util.md"
> It didn't before, so I didn't add it.  If it should, I'd be glad to add it in a separate patch.

`Documentation/util.md` did not include them either until they were added here and in 48966.   Just so everything is synced, could this PR be updated to add the header and footer to `util/REAME.md` as well as a PR with with the file updated?