Add links to translations

All READMEs should contains links to translated versions.

README.md

@@ -16,6 +16,8 @@
 <p align="center"><a href="https://newpipe.schabi.org">Website</a> &bull; <a href="https://newpipe.schabi.org/blog/">Blog</a> &bull; <a href="https://newpipe.schabi.org/FAQ/">FAQ</a> &bull; <a href="https://newpipe.schabi.org/press/">Press</a></p>
 <hr>
 
+*Read this in other languages: [English](README.md), [한국어](README.ko.md).*
+
 <b>WARNING: THIS IS A BETA VERSION, THEREFORE YOU MAY ENCOUNTER BUGS. IF YOU DO, OPEN AN ISSUE VIA OUR GITHUB REPOSITORY.</b>
 
 <b>PUTTING NEWPIPE OR ANY FORK OF IT INTO GOOGLE PLAYSTORE VIOLATES THEIR TERMS OF CONDITIONS.</b>