upload cover image

Author: liyu95

README.md

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 ### This work has been officially published, but we will keep updating this repository to keep up with the most advanced researches. If you have any suggestions, feel free to open an issue. You are also very welcomed to contribute.
 
 <p align="center">
-<img src="https://drive.google.com/open?id=1Y3lUYDE4W7yS6jF9HFCW8dOrjib6Yutx" width="600" alt="cover image" title='Cover image for the Methods issue'/>
+<img src="https://github.com/lykaust15/Deep_learning_examples/blob/master/cover_image_for_Methods/methods_cover_image.jpg" width="600" alt="cover image" title='Cover image for the Methods issue'/>
 </p>
 
 The related tutorial and review manuscript can be referred here: [Deep learning in bioinformatics: introduction, application, and perspective in the big data era](https://www.sciencedirect.com/science/article/pii/S1046202318303256) [[PDF]](https://drive.google.com/open?id=1ltLk9n2SQ0j076QUqU633EpB2KJbQX7O)