Hi, and welcome! This kind of thing might be helpful, and the page is quite attractively done. Can I encourage you to add the CMOS instructions and addressing modes. The old limited NMOS 6502 has been out of production for decades, but the CMOS continues on with no end in sight, with a lot of benefits. The many improvements are summarized at
http://wilsonminesco.com/NMOS-CMOSdif/ . You could put their text in a different color if you want to show that they're not in the old NMOS set.
I did not proofread the whole thing, but as I was trying an example of how to use it, I looked at op code $64 which is STZ ZP, but occupying its spot is ADC ZP which should be $65 instead. As I was trying to figure it out further, I see ASL ZP is at 05 which should be ORA ZP, and ASL ZP,X is $15 which should be ORA ZP,X. The ones with lsn=6 are missing, even though they're in the NMOS, unlike the ones with lsn=7, B, and F.
Thanks.