run1_download_DISP_S1_Static.py --bbox option only available on notebook_disp branch (not clear in docs)

[Dani-Lindsay]

Hi OPERA team,

I ran into some confusion while installing opera_disp from the OPERA_Applications repository.

When browsing GitHub, I saw that
DISP/Timeseries/opera_disp/run1_download_DISP_S1_Static.py
includes the --bbox option. However, after cloning the repo locally, the script did not include this option.

It turns out that the version with --bbox is on the notebook_disp branch, while the default clone checks out main, which does not contain that option.

It might be helpful to clarify in installation.md which branch users should check out (e.g., notebook_disp) if they want the current notebook-based workflow with --bbox support.

This would help avoid confusion for new users.

Thanks!
Dani