Eric Engestrom authored Apr 01, 2024 and Marge Bot committed Apr 01, 2024

Drop mention of the option for classic drivers, be clearer about which
options enable gles1 and 2+, mention that it's 2+ and not just 2, be
clearer when we say "main library" that we're talking about the EGL lib,
and some grammar fixes.

Part-of: <mesa/mesa!28497>