Over the course of the past few years, in order to help others with learning ASM, I've continuously worked on and released my SNES ASM tutorial. Nowadays, I have two ASM tutorials, one focused on opcodes and one which gets you started with ASM hacking. Feel free to check them out here, here and here!
If you want to edit my submissions, you have my permission. In fact, you can even submit them back to the Central. It'll simply mean more (improved) resources for the hackers out there which is a good thing. As of 2020/07/27, rule C6 has been added. I am hereby granting explicit permission to others to modify my resources, as long as I am credited. I am pro-open source resources, after all.