Fix cross links

Author: troyraen

tutorials/spherex/spherex_psf.md

@@ -70,7 +70,7 @@ Both should be defined using `astropy` units.
 The goal is to obtain the cutout and then extract the PSF corresponding to the coordinates of interest.
 
 ```{tip}
-To learn more about how to access SPHEREx spectral images and how to download cutouts, we refer to the [SPHEREx Intro Tutorial](https://caltech-ipac.github.io/irsa-tutorials/tutorials/spherex/spherex_intro.html1) and the [SPHEREx Cutout Tutorial](https://caltech-ipac.github.io/irsa-tutorials/1).
+To learn more about how to access SPHEREx spectral images and how to download cutouts, we refer to the [SPHEREx Intro Tutorial](spherex_intro) and the [SPHEREx Cutouts Tutorial](spherex_cutouts).
 ```
 
 ```{code-cell} ipython3