add dataset format to cf-stsb section

README.md

@@ -159,7 +159,7 @@ This dataset uses the list of annotator 'votes' to cast a NOT_ENOUGH_INFO (NEI)
 | SUPPORTS > REFUTES | _SUPPORTS_ |
 | SUPPORTS < REFUTES | _REFUTES_ |
 
-Any Claims that have,
+In addition to all the claims in **cf-nli**, any Claims that have,
 
 * **_at least one_** SUPPORTS or REFUTES evidence, AND
 * NEI evidences that can be cast to effective _SUPPORTS_ or _REFUTES_
@@ -168,6 +168,12 @@ are included in the datasset.
 
 ### **cf-stsb**
 
+For each Claim <-> Evidence pair, create labeled pairs in the style of STSb dataset:
+
+| split | dataset | score | sentence1 | sentence2 |
+|---|---|---|---|---|
+| {'train', 'dev', 'test'} | 'climate-fever' | cos_sim score | claim | evidence |
+
 This dataset uses 'evidence_label', vote 'entropy', and the list of annotator 'votes' to derive a similarity score for each claim <-> evidence pairing. Similarity score conversion:
 
 > `mean(entropy)` refers to the average entropy within the defined group of evidence
@@ -186,6 +192,7 @@ This dataset uses 'evidence_label', vote 'entropy', and the list of annotator 'v
 
 The above derivation roughly maps the strength of evidence annotation (REFUTES..NEI..SUPPORTS) to cosine similarity (-1..0..1).
 
+
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 #### Who are the annotators?