Comment out "out of date" notebooks and scripts from the documentation page

Author: VeckoTheGecko

docs/documentation/index.md

@@ -2,67 +2,72 @@
 
 Shown below are several documentation and tutorial Jupyter notebooks and scripts which go through various aspects of Parcels.
 
+```{note}
+The tutorials written for Parcels v3 are currently being updated for Parcels v4. Shown below are only the notebooks which have been updated.
+[Feel free to post a Discussion on GitHub](https://github.com/OceanParcels/Parcels/discussions/categories/ideas) if you feel like v4 needs a specific tutorial that wasn't in v3, or [post an issue](https://github.com/OceanParcels/Parcels/issues/new?template=01_feature.md) if you feel that the notebooks below can be improved!
+```
+
 ```{nbgallery}
 :caption: Overview
 :name: tutorial-overview
 
-../examples/tutorial_parcels_structure.ipynb
-../examples/parcels_tutorial.ipynb
-../examples/tutorial_output.ipynb
+<!-- ../examples/tutorial_parcels_structure.ipynb -->
+<!-- ../examples/parcels_tutorial.ipynb -->
+<!-- ../examples/tutorial_output.ipynb -->
 ```
 
 ```{nbgallery}
 :caption: Setting up FieldSets
 :name: tutorial-fieldsets
 
-../examples/documentation_indexing.ipynb
-../examples/tutorial_nemo_curvilinear.ipynb
-../examples/tutorial_nemo_3D.ipynb
-../examples/tutorial_croco_3D.ipynb
-../examples/tutorial_timevaryingdepthdimensions.ipynb
-../examples/tutorial_periodic_boundaries.ipynb
-../examples/tutorial_interpolation.ipynb
-../examples/tutorial_unitconverters.ipynb
+<!-- ../examples/documentation_indexing.ipynb -->
+<!-- ../examples/tutorial_nemo_curvilinear.ipynb -->
+<!-- ../examples/tutorial_nemo_3D.ipynb -->
+<!-- ../examples/tutorial_croco_3D.ipynb -->
+<!-- ../examples/tutorial_timevaryingdepthdimensions.ipynb -->
+<!-- ../examples/tutorial_periodic_boundaries.ipynb -->
+<!-- ../examples/tutorial_interpolation.ipynb -->
+<!-- ../examples/tutorial_unitconverters.ipynb -->
 ```
 
 ```{nbgallery}
 :caption: Creating ParticleSets
 :name: tutorial-particlesets
 
-../examples/tutorial_delaystart.ipynb
+<!-- ../examples/tutorial_delaystart.ipynb -->
 ```
 
 ```{nbgallery}
 :caption: Writing kernels to be executed on each particle
 :name: tutorial-kernels
 
-../examples/tutorial_diffusion.ipynb
-../examples/tutorial_sampling.ipynb
-../examples/tutorial_particle_field_interaction.ipynb
-../examples/tutorial_interaction.ipynb
-../examples/tutorial_analyticaladvection.ipynb
-../examples/tutorial_kernelloop.ipynb
+<!-- ../examples/tutorial_diffusion.ipynb -->
+<!-- ../examples/tutorial_sampling.ipynb -->
+<!-- ../examples/tutorial_particle_field_interaction.ipynb -->
+<!-- ../examples/tutorial_interaction.ipynb -->
+<!-- ../examples/tutorial_analyticaladvection.ipynb -->
+<!-- ../examples/tutorial_kernelloop.ipynb -->
 ```
 
 ```{nbgallery}
 :caption: Other tutorials
 :name: tutorial-other
 
-../examples/tutorial_peninsula_AvsCgrid.ipynb
-../examples/documentation_MPI.ipynb
-../examples/documentation_stuck_particles.ipynb
-../examples/documentation_unstuck_Agrid.ipynb
-../examples/documentation_LargeRunsOutput.ipynb
-../examples/documentation_geospatial.ipynb
-../examples/documentation_advanced_zarr.ipynb
+<!-- ../examples/tutorial_peninsula_AvsCgrid.ipynb -->
+<!-- ../examples/documentation_MPI.ipynb -->
+<!-- ../examples/documentation_stuck_particles.ipynb -->
+<!-- ../examples/documentation_unstuck_Agrid.ipynb -->
+<!-- ../examples/documentation_LargeRunsOutput.ipynb -->
+<!-- ../examples/documentation_geospatial.ipynb -->
+<!-- ../examples/documentation_advanced_zarr.ipynb -->
 ```
 
 ```{nbgallery}
 :caption: Worked examples
 :name: tutorial-examples
 
 ../examples/tutorial_Argofloats.ipynb
-../examples/documentation_homepage_animation.ipynb
+<!-- ../examples/documentation_homepage_animation.ipynb -->
 ```
 
 ## Python Example Scripts