See the rendering at the beginning of the IMDB reviews dataset page: https://www.tensorflow.org/datasets/catalog/imdb_reviews. The source code should be here https://github.com/tensorflow/datasets/blob/master/docs/catalog/imdb_reviews.md
Screenshot:

HTML line affected:
<meta itemprop="description" content="Large Movie Review Dataset. This is a dataset ... ;See [the guide](https://www.tensorflow.org/datasets/overview) for more informations on [tensorflow_datasets](https://www.tensorflow.org/datasets). " />
I couldn't find a bug by comparing imdb_reviews.md to the other raw Markdown files of other datasets at https://github.com/tensorflow/datasets/tree/master/docs/catalog. Can you check on your side?
Thank you for reporting. This is very strange indeed. I'm not sure what is happening here. We'll investigate
This is now fixed: https://www.tensorflow.org/datasets/catalog/imdb_reviews
Thanks to Yash for the quick fix. Closing this now