Update README.md

README.md

@@ -14,25 +14,36 @@ viewer: false
 
 ## Description
 
-*TODO: What is the artifact?*
+RetroMAE index for Arguana
 
 ## Usage
 
 ```python
 # Load the artifact
 import pyterrier_alpha as pta
-artifact = pta.Artifact.from_hf('pyterrier/arguana.retromae.flex')
-# TODO: Show how you use the artifact
+index = pta.Artifact.from_hf('pyterrier/arguana.retromae.flex')
+index.np_retriever()
 ```
 
 ## Benchmarks
 
-*TODO: Provide benchmarks for the artifact.*
+`arguana`
+
+| name      |   nDCG@10 |   R@1000 |
+|:----------|----------:|---------:|
+| np (flat) |    0.3657 |   0.9836 |
 
 ## Reproduction
 
 ```python
-# TODO: Show how you constructed the artifact.
+import pyterrier as pt
+from tqdm import tqdm
+import ir_datasets
+from pyterrier_dr import FlexIndex, RetroMAE
+pipeline = RetroMAE.msmarco_distill() >> FlexIndex("arguana.retromae.flex")
+dataset = ir_datasets.load('beir/arguana')
+docs = ({'docno': d.doc_id, 'text': d.default_text()} for d in tqdm(dataset.docs))
+pipeline.index(docs)
 ```
 
 ## Metadata