Update app.py

app.py

@@ -18,7 +18,7 @@ build_deformable_conv()
 # Demo file here
 description = """
 # Prismer 
-The official demo for **Prismer: A Vision-Language Model with An Ensemble of Experts**.
+The official demo for **Prismer: A Vision-Language Model with Multi-Task Experts**.
 Please refer to our [project page](https://shikun.io/projects/prismer) or [github](https://github.com/NVlabs/prismer) for more details.
 Expert labels will be only computed once for the same image checked with md5sum.
 """