Add a small example

Author: AlexFlipnote

i18n/README.md

@@ -10,3 +10,7 @@ To add or update translations, edit the respective JSON files in this directory.
 Each file corresponds to a specific language code (e.g., `no-NB.json` for Norwegian Bokmål).
 Make sure to follow the existing structure and format when adding new translations.
 
+An easy way to contribute is to copy the `en-GB.json` file and rename it to the desired language code, then translate the values accordingly.
+
+> [!WARNING]
+> Do not change the keys, only the values. Keys are the same across all languages to ensure that the application can correctly map translations.