Update warning in README.md

Author: exa04

README.md

@@ -1,5 +1,5 @@
-> [!NOTE]
-> To use Cyma 0.1.0, you often need Mutexes, which can lead to **priority inversion** and **syscalls** on the audio thread. I'm working on a new (most likely MPMC channel/queue-based) system to adress this. It'll be part of Cyma 0.2.0
+> [!CAUTION]
+> To use Cyma 0.1.0, you often need to use Mutexes within your plugin code, which can lead to **priority inversion** and **syscalls** on the audio thread. I'm working on a new [channel-based system](https://github.com/exa04/cyma/pull/58) to adress this - expect breaking changes. It'll be part of Cyma 0.2.0.
 
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