removed first warning. Added note that not intended for use on QR-1; added link to function to update header.

Author: afaisst

tutorials/spherex/spherex_psf.md

@@ -21,15 +21,6 @@ kernelspec:
 
 +++
 
-```{warning}
-In the SPHEREx spectral image versions prior or equal to 6.5.5, there was a missmatch between the spatial layout of the PSF zones and the the indexing of the PSF zones in the image header. This has now been fixed in versions post 6.5.5.
-However, users using the old versions will need to implement and extra step (described below in Section 5.1) to update the image header.
-
-For more information about these changes, see the following webpage: [PSF Erratum](https://irsa.ipac.caltech.edu/data/SPHEREx/docs/psfhdrerr.html)
-```
-
-+++
-
 ## 1. Learning Goals
 
 * Determine how pixels in a SPHEREx cutout map to the pixels in the parent SPHEREx spectral image.
@@ -39,6 +30,12 @@ For more information about these changes, see the following webpage: [PSF Erratu
 
 +++
 
+```{note}
+This notebook is not intended for use of QR-1 data.
+```
+
++++
+
 ## 2. SPHEREx Overview
 
 SPHEREx is a NASA Astrophysics Medium Explorer mission that launched in March 2025.
@@ -226,7 +223,7 @@ In the SPHEREx spectral image versions prior or equal to 6.5.5, there was a miss
 
 For more information about these changes, see the following webpage: [PSF Erratum](https://irsa.ipac.caltech.edu/data/SPHEREx/docs/psfhdrerr.html)
 
-**Users using the old versions will need to implement and extra step (described below) to update the image header.**
+**Users using the old versions will need to implement and extra step to update the image header. A function to update the header is given [in Section 5.1 below](#update_psf_header_function). **
 ```
 
 Let's first check here if a header update is necessary. We can do that by printing the `VERSION` keyword in the header.
@@ -282,6 +279,7 @@ The function that can be used to update the header is shown below. The function
 Note that this function an work as standalone function to process many images.
 
 ```{code-cell} ipython3
+<a id="update_psf_header_function"></a>
 def update_psf_header(old_hdul):
     """
     Fix a old PSF FITS file header by rewriting only the per-plane header metadata