add task category tag

README.md

@@ -1,3 +1,7 @@
+---
+task_categories:
+- time-series-forecasting
+---
 
 # Forecasting Future World Events with Neural Networks
 
@@ -51,4 +55,4 @@ If you find this useful in your research, please consider citing:
       author={Andy Zou and Tristan Xiao and Ryan Jia and Joe Kwon and Mantas Mazeika and Richard Li and Dawn Song and Jacob Steinhardt and Owain Evans and Dan Hendrycks},
       journal={NeurIPS},
       year={2022}
-    }
+    }