[coreboot-gerrit] Change in coreboot[master]: Documentation: Add basics section

[Patrick Rudolph (Code Review)]

Patrick Rudolph has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/35910 )

Change subject: Documentation: Add basics section
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Patch Set 2:

Please read https://doc.coreboot.org/getting_started/writing_documentation.html first and try your changes using "make sphinx"