fix small typo in deform_source_mesh_to_target_mesh.ipynb (#34)

Summary:
fixed target object data folder path './data/doplhin'-> './data/dolphin'
Pull Request resolved: https://github.com/facebookresearch/pytorch3d/pull/34

Differential Revision: D19815377

Pulled By: nikhilaravi

fbshipit-source-id: ff17f6aef8d835b11d7803e912a311c7118b03fa

docs/tutorials/deform_source_mesh_to_target_mesh.ipynb

@@ -113,7 +113,7 @@
    "source": [
     "# The path to the target 3D model we wish to fit\n",
     "# e.g. download https://free3d.com/3d-model/-dolphin-v1--12175.html and save in ./data/dolphin\n",
-    "trg_obj = os.path.join('./data/doplhin', '10014_dolphin_v2_max2011_it2.obj')"
+    "trg_obj = os.path.join('./data/dolphin', '10014_dolphin_v2_max2011_it2.obj')"
    ]
   },
   {