Showcase (already-existing) actual usage of modify in actual code of some of my other libraries. (Actually I'm not 100% sure I started using this yet, but I remember using or wishing to use anaphoric macros in several places in my old code awaiting cleanup.)
Add examples of defining custom anaphoric-variants.
Show macro call/expansion correspondance on mouseover.
Maybe add a call for consolidation? Remove aifet al. from libraries and use modify instead? (Though anaphoric may not appeal to those fixated on brevity at all costs.)