Add task category and license metadata

README.md

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+---
+license: other
+task_categories:
+- image-text-to-text
+---
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 # Urbex data assets
 
 Annotations, landmarks, BEV images and scene-level oblique caches for [Urbex](https://github.com/AMAP-ML/Urbex).
@@ -14,4 +20,4 @@ These assets include processed annotations, rendered views and candidate pools b
 - [SensatUrban](https://github.com/QingyongHu/SensatUrban): source point clouds for CityRefer scenes. The original point clouds are not included in this repository; obtain them through the official SensatUrban download form and place the PLY files under `raw_data/sensaturban/ply/{train,test}/` for 3D metrics. This release does not assign a replacement license to SensatUrban-derived assets.
 - [STPLS3D](https://www.stpls3d.com/data): the official data page specifies CC BY-NC-SA 3.0. Retain attribution, noncommercial use and share-alike conditions for STPLS3D-derived assets.
 
-Urbex converts annotations to JSONL, generates BEV mappings and cached oblique renders, and packages those assets for scene-level downloads. Cite Urbex and the applicable upstream datasets. The included STPLS3D PLY files retain their source filenames and upstream data terms.
+Urbex converts annotations to JSONL, generates BEV mappings and cached oblique renders, and packages those assets for scene-level downloads. Cite Urbex and the applicable upstream datasets. The included STPLS3D PLY files retain their source filenames and upstream data terms.