repositories: Add rnp overlay

Closes: #418
Signed-off-by: Michał Górny <[email protected]>

files/overlays/repositories.xml

@@ -3453,6 +3453,18 @@
  <source type="git">[email protected]:pkulev/riru.git</source>
  <feed>https://github.com/pkulev/riru/commits/master.atom</feed>
  </repo>
+ <repo quality="experimental" status="unofficial">
+ <name>rnp</name>
+ <description lang="en">High performance C++ OpenPGP library, fully compliant to RFC 4880</description>
+ <homepage>https://www.rnpgp.org/</homepage>
+ <owner type="person">
+ <email>[email protected]</email>
+ <name>Anton Sviridenko</name>
+ </owner>
+ <source type="git">https://github.com/rnpgp/gentoo-rnp.git</source>
+ <source type="git">git+ssh:https://[email protected]/rnpgp/gentoo-rnp.git</source>
+ <feed>https://github.com/rnpgp/gentoo-rnp/commits/master.atom</feed>
+ </repo>
  <repo quality="experimental" status="unofficial">
  <name>robert7k</name>
  <description lang="en">personal overlay of robert7k</description>