Normalize README Source provenance table and standard disclaimers

README.md

@@ -27,6 +27,10 @@ This repository contains ONNX exports for DeepFilterNet3, a speech enhancement a
 | Quantization recipe | FP32 ONNX (`enc.onnx`, `erb_dec.onnx`, `df_dec.onnx`) |
 | Notes | Upstream weights are from the DeepFilterNet GitHub project; ONNX graphs are pinned at the packaging revision above. |
 
+## Precision and Packaging
+
+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.
+
 ## Files
 
 | File | Description |
@@ -49,10 +53,8 @@ No repository-specific ONNX evaluation results are documented here.
 
 ## Limitations
 
-- Runtime compatibility and numerical parity with the upstream implementation are not documented here.
 - DeepFilterNet usage examples commonly target 48 kHz audio; validate input requirements before deployment.
 
 ## License
 
 Apache-2.0. The upstream DeepFilterNet project is dual-licensed under MIT or Apache-2.0.
-