Update image dataset tags (#3864)

* Align image datasets with new image task tags

* Add missing tags/sections to pass CI

Commit from https://github.com/huggingface/datasets/commit/a0c2e960110392da20c84d13ca3764cf7d7a9953

README.md

@@ -15,10 +15,10 @@ size_categories:
 source_datasets:
 - original
 task_categories:
-- other
+- image-classification
+- object-detection
 task_ids:
-- other-other-object-detection
-- other-other-image-classification
+- single-label-image-classification
 paperswithcode_id: svhn
 pretty_name: Street View House Numbers
 ---
@@ -66,7 +66,7 @@ SVHN is a real-world image dataset for developing machine learning and object re
 
 ### Supported Tasks and Leaderboards
 
-- `object-classification`: The dataset can be used to train a model for digit detection.
+- `object-detection`: The dataset can be used to train a model for digit detection.
 - `image-classification`: The dataset can be used to train a model for Image Classification where the task is to predict a correct digit on the image. The leaderboard for this task is available at:
 https://paperswithcode.com/sota/image-classification-on-svhn