Add the extensions zip and easyrpg to the list of supported extensions
Specify that the database is only for games made with RPG Maker 2000 and 2003 and not the newer engines (to make sure that it will not be an issue in the future) and add a link to the thumbnails part (I had a hard time finding it since I don't really work on libretro, so linking it is likely welcome I think)
Add remapping as a possibly through the new settings scene of the version 0.8.0
Fix a typo in the input part
Add missing keys to the list and reorder them to be in the same order than the settings scene of the engine
Feel free to request any change.