Update readme with reverb example for release v0.4

README.md

@@ -2,7 +2,30 @@
 
 A small package with stateful audio limiter implementation in Cython. Since the limiter is stateful it is suitable for streaming audio processing.
 
-## Examples
+We're slowly growing into other effects beyond limiter, starting with streaming reverb in v0.4.
+
+## What's new?
+
+### v0.4: Added reverb with RIR
+
+```python
+from cylimiter import ReverbRIR
+
+reverb = ReverbRIR()  # default RIR
+# or user-provided RIR:
+#  reverb = ReverbRIR([0.001, 0.021, 0.007, ...])
+
+reverb.apply(audio)          # makes a copy
+reverb.apply_inplace(audio)  # no copies with np.array input
+
+# preserves context between calls for streaming applications
+for chunk in audio_source:
+    reverb.apply_inplace(chunk)
+```
+
+
+
+### Examples
 
 ```python
 import numpy as np