Update README.md

README.md

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 # HEADLINES - A Massive-Scale Semantic Similarity Dataset of Historical English
 
-![image (2).png](https://s3.amazonaws.com/moonup/production/uploads/61654589b5ec555e8e9c203a/uhGAPMM666KM4AX7FXtDJ.png)
+![image (2).png](https://s3.amazonaws.com/moonup/production/uploads/61654589b5ec555e8e9c203a/uhGAPMM666KM4AX7FXtDJ.png){max-width: 30%}
 
 ## Dataset Summary
 HEADLINES contains 396,001,930 pairs of different headlines for the same newspaper article. 
 
 ## Dataset Creation
-The dataset is constructed using a large corpus of newly digitized articles from off-copyright, local U.S. newspapers. 
+The dataset was constructed using a large corpus of newly digitized articles from off-copyright, local U.S. newspapers. 
 Many of these newspapers reprint articles from newswires, such as the Associated Press, but the headlines are written locally. 
-The dataset is constructed from different headlines for the same article. 
+The dataset comprises different headlines for the same article. 
 
 ## Dataset Description
 The dataset contains 396,001,930 positive semantic similarity pairs, from 1920 to 1989.