Update README.md

Author: anaelorlinski

README.md

@@ -10,7 +10,7 @@ Other Models : [R5S](https://github.com/anaelorlinski/OpenWrt-NanoPi-R5S-Builds/
 If you like this project you can gift me a coffee !
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-## OpenWrt 23.05.4 (stable)
+## OpenWrt 23.05.5 (stable)
 
 [Download 23.05 Releases](https://github.com/anaelorlinski/OpenWrt-NanoPi-R2S-R4S-Builds/releases?q=OpenWrtAO-23.05&expanded=true) [Changelog](https://github.com/anaelorlinski/OpenWrt-NanoPi-R2S-R4S-Builds/blob/main/openwrt-23.05/release-info.md)
 Supported Models : R2S / R4S(1Gb & 4Gb)