Release notes

docs/releases.md

@@ -24,6 +24,7 @@ and the [ntfy Android app](https://github.com/binwiederhier/ntfy-android/release
 * Added Rundeck example ([#427](https://github.com/binwiederhier/ntfy/pull/427), thanks to [@demogorgonz](https://github.com/demogorgonz))
 * Fix Debian installation instructions ([#237](https://github.com/binwiederhier/ntfy/issues/237), thanks to [@Joeharrison94](https://github.com/Joeharrison94) for reporting)
 * Updated [example](https://ntfy.sh/docs/examples/#gatus) with official [Gatus](https://github.com/TwiN/gatus) integration (thanks to [@TwiN](https://github.com/TwiN))
+* Added [Kubernetes install instructions](https://ntfy.sh/docs/install/#kubernetes) ([#452](https://github.com/binwiederhier/ntfy/pull/452), thanks to [@gmemstr](https://github.com/gmemstr))
 
 **Additional translations:**