Missing apps in the readme

[altrisi]

I made a quick java script to check for missing entries in the survival folder, and it found the following ones:

• [x] bridge_maker.sc
• [x] combine_xp_orbs.sc
• [x] easier_renewable_sponge.sc
• [x] flippin_cactus.sc
• [x] item_holding_mobs_despawn.sc
• [x] no_useless_llamas.sc (different format)
• [x] showbiome.sc
• [x] show_bees_count.sc

I haven't yet checked if some may be just that the title is not formatted the same way.

[altrisi]

no_useless_llamas seems to be using a different format than the rest, rifts is a folder (didn't check if it was file or folder), the rest are correct.

[Ghoulboy78]

I updated it so it's a list, so I can just tick them off as I add them one by one.