Enhance dataset card: add sample usage, update project page label and tags

This PR improves the dataset card for the BEHAVIOR Robot Suite (BRS) Data by:

* Adding a "Sample Usage" section with practical code snippets for training a WB-VIMA policy and deploying it on a real robot, extracted directly from the project's GitHub README.
* Updating the "Demo" label under "Dataset Sources" to "Project page" for improved clarity and consistency with standard conventions.
* Adding relevant `tags` to the metadata (`robot-manipulation`, `imitation-learning`, `real-world-data`) to enhance the dataset's discoverability on the Hugging Face Hub, reflecting its core aspects as described in the paper and repository.

README.md

@@ -5,6 +5,10 @@ license: mit
 task_categories:
 - robotics
 pretty_name: BRS Data
+tags:
+- robot-manipulation
+- imitation-learning
+- real-world-data
 ---
 
 # Dataset Card for BEHAVIOR Robot Suite (BRS) Data
@@ -31,12 +35,33 @@ These data are first collected and used in the paper [BEHAVIOR Robot Suite: Stre
 
 - **Repository:** https://github.com/behavior-robot-suite/brs-algo
 - **Paper:** https://arxiv.org/abs/2503.05652
-- **Demo:** https://behavior-robot-suite.github.io/
+- **Project page:** https://behavior-robot-suite.github.io/
 
 ## Uses
 
 For usage instructions, see our doc [here](https://behavior-robot-suite.github.io/docs/sections/wbvima/overview.html).
 
+## Sample Usage
+
+To train a WB-VIMA policy, simply run the following command as described in the [official documentation](https://behavior-robot-suite.github.io/docs/sections/wbvima/overview.html):
+
+```bash
+python3 main/train/train.py data_dir=<HDF5_PATH> \
+    bs=<BS> \
+    arch=wbvima \
+    task=<TASK_NAME> \
+    exp_root_dir=<EXP_ROOT_DIR> \
+    gpus=<NUM_GPUS> \
+    use_wandb=<USE_WANDB> \
+    wandb_project=<WANDB_PROJECT>
+```
+
+To deploy a WB-VIMA policy on the real robot, simply run the following command:
+
+```bash
+python3 main/rollout/<TASK_NAME>/rollout_async.py --ckpt_path <CKPT_PATH> --action_execute_start_idx <IDX>
+```
+
 ## Citation
 
 **BibTeX:**