Each java or javascript file in the codebase should be annotated with the proper copyright header. This header should be also applied to singnificant html files.
We use checkstyle to check for it being present in Java files. We also check for it during our Grunt build in javascript files.
The current copyright header format can be found here.
Replace the year and holder with appropriate holder, for example:
Copyright © 2017 VillageReach