Update model preview

README.md

@@ -1,6 +1,6 @@
 ---
 language: en
-thumbnail: https://github.com/borisdayma/huggingtweets/blob/master/img/logo.png?raw=true
+thumbnail: https://www.huggingtweets.com/weights_biases/1607115678433/predictions.png
 tags:
 - huggingtweets
 widget:
@@ -110,4 +110,4 @@ For more details, visit the project repository.
 
 [![GitHub stars](https://img.shields.io/github/stars/borisdayma/huggingtweets?style=social)](https://github.com/borisdayma/huggingtweets)
 
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