Normalize README Source provenance table and standard disclaimers

README.md

@@ -57,9 +57,7 @@ Silero VAD is language-agnostic and works across a wide range of languages.
 
 ## Precision and Packaging
 
-INT8 quantization from the ONNX Community export (mirrored unchanged). Some accuracy loss relative to FP16/FP32 is expected,
-but Silero VAD is small and INT8 quality is generally acceptable for VAD. No parity
-benchmark is documented here.
+Export tooling, precision, and quantization are recorded in the **Source** table above. This packaging mirror does not publish independent parity benchmarks; validate on your target execution provider before production use.
 
 ## Limitations
 
@@ -71,4 +69,4 @@ benchmark is documented here.
 
 [MIT](https://choosealicense.com/licenses/mit/) — inherited from
 `onnx-community/silero-vad` and the original Silero VAD model. This packaging repo adds
-no new license terms.
+no new license terms.