Update better simpler bridge result (#383)

* Update better simpler bridge result

https://huggingface.co/youliangtan/gr00t-n1.5-bridge-posttrain/tree/main

| Task                                | Before        | After         | Δ Change   |
| ----------------------------------- | ------------- | ------------- | ---------- |
| widowx\_spoon\_on\_towel            | 226/300 (75%) | 238/300 (79%) | 🔼 +4%     |
| widowx\_carrot\_on\_plate           | 163/300 (54%) | 207/300 (69%) | 🔼 +15%    |
| widowx\_put\_eggplant\_in\_basket   | 184/300 (61%) | 145/300 (48%) | 🔻 −13%    |
| widowx\_stack\_cube                 | 171/300 (57%) | 143/300 (48%) | 🔻 −9%     |
| widowx\_put\_eggplant\_in\_sink\*\* | 19/300 (6%)   | 41/300 (14%)  | 🔼 +8%     |
| widowx\_close\_drawer\*\*           | 68/300 (23%)  | 166/300 (55%) | 🔼 +32%    |
| widowx\_open\_drawer\*\*            | 129/300 (43%) | 213/300 (71%) | 🔼 +28%    |
| **Average**                         | **46%**       | **55%**       | 🔼 **+9%** |

* Update result for batch 90

* nit

Author: youliangtan

examples/SimplerEnv/README.md

@@ -15,14 +15,14 @@ Provided checkpoint: youliangtan/gr00t-n1.5-bridge-posttrain
 
 | Task                              | Success rate (300) |
 | --------------------------------- | ------------------ |
-| widowx\_spoon\_on\_towel          | 226/300 (75%)      |
-| widowx\_carrot\_on\_plate         | 163/300 (54%)      |
-| widowx\_put\_eggplant\_in\_basket | 184/300 (61%)      |
-| widowx\_stack\_cube               | 171/300 (57%)      |
-| widowx\_put\_eggplant\_in\_sink** | 19/300 (6%)        |
-| widowx\_close\_drawer**           | 68/300 (23%)       |
-| widowx\_open\_drawer**            | 129/300 (43%)      |
-| **Average**                       | **46%**            |
+| widowx\_spoon\_on\_towel          | 246/300 (82%)      |
+| widowx\_carrot\_on\_plate         | 216/300 (72%)      |
+| widowx\_put\_eggplant\_in\_basket | 189/300 (63%)      |
+| widowx\_stack\_cube               | 162/300 (54%)      |
+| widowx\_put\_eggplant\_in\_sink** | 62/300 (21%)        |
+| widowx\_close\_drawer**           | 196/300 (65%)       |
+| widowx\_open\_drawer**            | 251/300 (84%)      |
+| **Average**                       | **55%**            |
 
 **Denotes as "non-original" new simpler task [here](https://github.com/youliangtan/SimplerEnv)
 
@@ -149,7 +149,7 @@ python scripts/gr00t_finetune.py \
     --dataset-path /tmp/bridge_orig_lerobot/ \
     --data_config examples.SimplerEnv.custom_data_config:BridgeDataConfig \
     --num-gpus 8 \
-    --batch-size 64 \
+    --batch-size 90 \
     --output-dir /tmp/bridge-checkpoints \
     --max-steps 60000
 ```
@@ -164,4 +164,4 @@ python scripts/gr00t_finetune.py \
     --batch-size 128 \
     --output-dir /tmp/fractal-checkpoints/ \
     --max-steps 60000
-```
+```