Hi there! 
Looking to contribute with a localization? Wonderful.

You will find the full english lang file here: 
https://github.com/Creators-of-Create/Create/blob/mc1.15/dev/src/generated/resources/assets/create/lang/en_us.json

If you want to complete an outdated lang file, check out
https://github.com/Creators-of-Create/Create/blob/mc1.15/dev/src/generated/resources/assets/create/lang/unfinished
Missing entries have been added to these templates, marked with "UNLOCALIZED". 
These files are only there to help you, finished langs still belong in the folder this readme is in. Best of luck!