Fixed an error in Mesh's document

Signed-off-by: Anka Chen <[email protected]>

warp/types.py

@@ -3003,7 +3003,7 @@ def __init__(self, points=None, indices=None, velocities=None, support_winding_n
 
         Args:
             points (:class:`warp.array`): Array of vertex positions of type :class:`warp.vec3`
-            indices (:class:`warp.array`): Array of triangle indices of type :class:`warp.int32`, should be a 1d array with shape (num_tris, 3)
+            indices (:class:`warp.array`): Array of triangle indices of type :class:`warp.int32`, should be a 1d array with shape (num_tris * 3)
             velocities (:class:`warp.array`): Array of vertex velocities of type :class:`warp.vec3` (optional)
             support_winding_number (bool): If true the mesh will build additional datastructures to support `wp.mesh_query_point_sign_winding_number()` queries
         """