Link dataset to paper

This PR improves the discoverability of your dataset, by linking it to https://huggingface.co/papers/2306.14899 and adding appropriate tags.

Btw, would be great to make the dataset directly available within datasets, such that people can do:

```python
from datasets import load_dataset

dataset = load_dataset("fesvhtr/FunQA")
```

README.md

@@ -1,3 +1,9 @@
----
-license: cc-by-nc-sa-4.0
----
+---
+license: cc-by-nc-sa-4.0
+task_categories:
+- video-text-to-text
+---
+
+# Dataset for the paper: FunQA: Towards Surprising Video Comprehension
+
+Paper: https://huggingface.co/papers/2306.14899.