Update README

README.md

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 - travel
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-# AI21 Hotels and WorldCup dataset cards
+# AI21-Hotels and AI2-WorldCup datasets
 
 The **AI21-Hotels** and **AI21-WorldCup** datasets were created to support research on *aggregative question answering* in open-book settings.
 Aggregative questions require retrieving information from a large set of documents and applying reasoning over the collected text snippets.
@@ -20,8 +20,8 @@ These datasets were first introduced in the paper “Structured RAG for Answerin
 ## AI21-Hotels dataset
 
 The **AI21-Hotels** dataset was automatically generated, with booking-like hotel pages, paired with aggregative queries.
-The train set (in folder ai21-Hotels-train) includes 50 pages, and 138 queries.
-The evaluation set (in folder ai21-Hotels-eval) includes 350 pages, and 193 queries.
+The train set (in folder AI21-Hotels-train) includes 50 pages, and 138 queries.
+The evaluation set (in folder AI21-Hotels-eval) includes 350 pages, and 193 queries.
 
 ## AI21-WorldCup dataset
 The **AI21-WorldCup** dataset consists of 22 Wikipedia pages, each corresponding to one WorldCup tournament held between 1930 and 2022,