Add pipeline tag (#2)

- Add pipeline tag (a8cba7ea9cddcebb0a42681b8743f6feaa16c813)


Co-authored-by: Niels Rogge <nielsr@users.noreply.huggingface.co>

README.md

@@ -1,3 +1,7 @@
+---
+pipeline_tag: text-to-image
+---
+
 <p align="center">
   <img src="assets/generated_logo.jpg"  height=120>
 </p>