update Helm documentation

Author: github-actions[bot]

charts/discord-bot/README.md

@@ -1,6 +1,6 @@
 # discord-bot
 
-![Version: 0.16.514](https://img.shields.io/badge/Version-0.16.514-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: dbe7c980fb50f5613634157779e9cbd5eab7a3da](https://img.shields.io/badge/AppVersion-dbe7c980fb50f5613634157779e9cbd5eab7a3da-informational?style=flat-square)
+![Version: 0.16.515](https://img.shields.io/badge/Version-0.16.515-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: dbe7c980fb50f5613634157779e9cbd5eab7a3da](https://img.shields.io/badge/AppVersion-dbe7c980fb50f5613634157779e9cbd5eab7a3da-informational?style=flat-square)
 
 🎵 Music bot for my private Discord server, powered by discord-player