This repo contains some processed csv files as well as the raw database/ folder, which contains a strongly typed file with information on every language on https://codelani.com.
To add or fix information on CodeLani, simply edit the corresponding lani file and send a pull request. For example, if the appeared year field for the Ada Language was incorrect, you could update that line on https://github.com/codelani/codelani/blob/master/database/ada.lani and send a pull request.
To add a new language simply create a new file in the database with a unique URL friendly filename ending in .lani. A simple example would be the typescript.lani file for TypeScript. For a language with a complex name like X+#, you might create a file called x-plus-sharp.lani. Please include a minimum of appeared, type, example, and at least one of website or github.