Information related to new ffmpeg packages (#60)

README.md

@@ -13,7 +13,7 @@ Huge thanks to [Benjamin Poncet](https://github.com/BenjaminPoncet), [Vincent Fo
 ## Dependencies
 - DSM 6.2.2-24922 Update 4 (and above)
 - Video Station 2.4.6-1594 (and above)
-- SynoCommunity ffmpeg 4.2.1-23 (and above) ([help](https://synocommunity.com/#easy-install))
+- SynoCommunity ffmpeg 4.x.x ([help](https://synocommunity.com/#easy-install)) ⚠️ ffmpeg5 and ffmpeg6 cannot be used with VideoStation for now.
 
 ## Supported / Unsupported scenarios
 - **[DTS or EAC3 or TrueHD] + [Any non HEVC standard video format]**: ✅