repositories: Change source for NymphOS overlay

Closes: #427
Signed-off-by: Michał Górny <[email protected]>

files/overlays/repositories.xml

@@ -2928,12 +2928,12 @@
  <repo quality="experimental" status="unofficial">
  <name>nymphos</name>
  <description lang="en">Overlay for ebuilds used in NymphOS</description>
- <homepage>https://git.nymphos.ga/</homepage>
+ <homepage>https://github.com/neeshy/nymphos</homepage>
  <owner type="person">
  <email>[email protected]</email>
  </owner>
- <source type="git">https://git.nymphos.ga/anon/nymphos</source>
- <feed>https://git.nymphos.ga/nymphos/atom</feed>
+ <source type="git">https://github.com/neeshy/nymphos</source>
+ <feed>https://github.com/neeshy/nymphos/commits/master.atom</feed>
  </repo>
  <repo quality="experimental" status="unofficial">
  <name>octopus</name>