The Dark Energy Spectroscopic Instrument (DESI) is carrying out a 5-year survey that aims to measure the redshifts of tens of millions of galaxies and quasars, including 8 million luminous red galaxies (LRGs) in the redshift range of $0.4Comment: AJ, resubmission, 25 pages, 22 figures, 4 tables, one of a suite of 8 papers detailing targeting for DESI