[Doc] Fix HF download ckpts and closedloop cmd (#457)

Cherrypick doc fixes applied to `demos/dli` for `main`.
It shall trigger doc built.

Author: xyao-nv

docs/pages/example_workflows/sequential_static_manipulation/step_5_evaluation.rst

@@ -28,11 +28,14 @@ pre-trained model checkpoint below:
 
    .. code-block:: bash
 
+      mkdir -p $MODELS_DIR/checkpoint-20000
       hf download \
         nvidia/GN1.6-Tuned-Arena-GR1-PlaceItemCloseDoor-Task \
         --include "ranch_bottle_into_fridge/*" \
         --repo-type model \
-        --local-dir $MODELS_DIR/checkpoint-20000
+        --local-dir $MODELS_DIR/_hf_download
+      mv $MODELS_DIR/_hf_download/ranch_bottle_into_fridge/* $MODELS_DIR/checkpoint-20000/
+      rm -rf $MODELS_DIR/_hf_download
 
 
 Step 1: Run Single Environment Evaluation
@@ -239,7 +242,7 @@ A sequential batch of jobs, i.e. different tasks, objects, embodiments or polici
 It minimizes the overhead of reloading system modules and environment classes for each job while keeping the simulation application alive.
 The evaluation batch can be specified in a config file, with examples shown below.
 
-.. dropdown:: Configuration file (``gr1_sequential_static_manip_eval_jobs_config.yaml``):
+.. dropdown:: Configuration file (``gr1_sequential_static_manip_eval_jobs_config.json``):
    :animate: fade-in
 
    .. code-block:: json