add reuse instructions

README.md

@@ -29,6 +29,19 @@ The following TCGA studies were used in training: ACC, BLCA, BRCA, CESC, COADREA
 
 The following TCGA studies were not used in training: CHOL, UVM, UCS, KICH, MESO, DLBC.
 
+## Reusing this model
+
+To use this model on the command line, see [WSInfer-MIL](https://github.com/kaczmarj/wsinfer-mil).
+
+Alternatively, you may use PyTorch on ONNX to run the model. First, embed 128um x 128um patches using CTransPath. Then pass the bag of embeddings to the model.
+
+```python
+import onnxruntime as ort
+import numpy as np
+embedding = np.ones((1_000, 768), dtype="float32")
+ort_sess = ort.InferenceSession("model.onnx")
+logits, attention = ort_sess.run(["logits", "attention"], {'input': embedding})
+```
 
 ## Model performance