fix(docs): SmolVLA fine-tuning getting started (#1201)

Co-authored-by: Pepijn <138571049+pkooij@users.noreply.github.com>
Co-authored-by: danaaubakirova <d.aubakirova@alumni.edu.kz>
Co-authored-by: Simon Alibert <75076266+aliberts@users.noreply.github.com>
Co-authored-by: Francesco Capuano <francesco_capuano@aol.com>
Co-authored-by: Steven Palma <steven.palma@huggingface.co>

docs/source/_toctree.yml

@@ -14,6 +14,10 @@
   - local: hilserl_sim
     title: Train RL in Simulation
   title: "Tutorials"
+- sections:
+  - local: smolvla
+    title: Finetune SmolVLA
+  title: "Policies"
 - sections:
   - local: so101
     title: SO-101