Update dataset card: remove logo, use simple markdown

README.md

@@ -15,7 +15,7 @@ size_categories:
 pretty_name: L. Frank Baum Corpus
 ---
 
-<h1><img src="https://cdn-avatars.huggingface.co/v1/production/uploads/1654865912089-62a33fd71424f432574c348b.png" alt="ContextLab" width="25" style="vertical-align: middle; margin-right: 10px;"/> ContextLab L. Frank Baum Corpus</h1>
+# ContextLab L. Frank Baum Corpus
 
 ## Dataset Description