I put the guide on google docs here:

https://docs.google.com/document/d/1-hr9I_sI8nJsbLXTbQvJujZfzEN2bBRhsChqexm4al8/edit?usp=drivesdk

Though no longer functional, guide was originally hosted at:

https://beta.speedrunacademy.com/games/super-mario-world/guides/11-exit-glitchless-for-beginners