Static Text
When calling static text in the content of your storefront pages. If the template contains a call to the "i18n.write" then its performing a look up first against the languages file "eng.default.json" for a match.
If it finds a match there it will use the text as defined in the languages document, and if it does not find a match there, it will use the string as defined in the template code directly.
Example
Muti-lingual Support
When calling another language, the storefront will first look for the
Directions for editing a language file
Step 1: Go to the Languages Page
Click on the Languages tab and then click Edit next to the desired language as shown below.
Step 2: Edit the Language
Use the search tool to quickly find the piece of text that you're interested in editing. Change the text in the edit field provided. Click save once you are finished.