core: update readme

README.md

@@ -147,15 +147,12 @@ license: mit
 <h1><span><img src="https://www.svgrepo.com/show/374627/dataset.svg" class="feature-icon" style="display: inline; vertical-align: middle;"> Datasets</span></h1>
 
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   Through all research outputs by <code>OSCUR</code>, datasets will be used, while as much as possible striving for open-data. 
   Therefore, to make it easier, we host below a list of open-datasets for <code>OSCUR</code> users to more rapidly access and analyse via the 
   <code>Hugging Face Datasets</code> library.
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   To name a few, this will be including urban tabular datasets, annotated visual data, sensor readings, human behavior markers,
   and other structured data tailored for urban computing scenarios. Each dataset is formatted for direct integration into machine learning workflows and visual 
   analytics pipelines, supporting applied research and education.
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 </p>
 
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