[M] Change in coreboot[master]: Docs: Add page for external resources

[Martin L Roth (Code Review)]

Attention is currently required from: Maximilian Brune, Sridhar Siricilla, Nicholas Chin, Felix Held.

Martin L Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/70239 )

Change subject: Docs: Add page for external resources
......................................................................

Patch Set 3:

(4 comments)

File Documentation/external_docs.md:

https://review.coreboot.org/c/coreboot/+/70239/comment/49500451_49505f79 
PS2, Line 1: # External Resources
> [ACPI in Linux] https://www.kernel.org/doc/ols/2005/ols2005v1-pages-59-76.pdf […]

Done

https://review.coreboot.org/c/coreboot/+/70239/comment/661fbe72_6c441b48 
PS2, Line 19:
> [PCIe elastic buffer] https://www.mindshare.com/files/resources/mindshare_pcie_elastic_buffer. […]

Done

https://review.coreboot.org/c/coreboot/+/70239/comment/258bd856_260f836b 
PS2, Line 64:
> [NVMe] (https://nvmexpress. […]

Done

https://review.coreboot.org/c/coreboot/+/70239/comment/fa536f69_d98ec288 
PS2, Line 76:
> [Intel specific ACPI] https://www.intel. […]

Done