Update use-third-party-application.md
Add information about a Roku app/channel. A link to both a GitHub repository as well as a Roku private channel code is given.
You don't pay for Framagit, because it is funded by donations to Framasoft. Our not-for-profit needs any support you can afford: support.framasoft.org.
Framagit est gratuit car il est financé par les dons à Framasoft. Notre association a besoin de votre soutien sur soutenir.framasoft.org.
Add information about a Roku app/channel. A link to both a GitHub repository as well as a Roku private channel code is given.