Change "Resampling the raster image" heading level to h2

[tomneep]

I'm pretty sure that the "Resampling the raster image" header in episode 6 should have level h2. There should really only be a single h1 per page, and it being h1 means it doesn't appear in the side bar.

[github-actions]

Thank you!

Thank you for your pull request 😃

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Rendered Changes

🔍 Inspect the changes: https://github.com/carpentries-incubator/geospatial-python/compare/md-outputs..md-outputs-PR-186

The following changes were observed in the rendered markdown documents:

 06-raster-intro.md | 2 +-
 md5sum.txt         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

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⏱️ Updated at 2026-05-06 14:21:57 +0000

[fnattino]

Thanks for catching this and for submitting the fix!

[tomneep]

Hi @fnattino, is there anything I need to do on my side to get this merged?

[fnattino]

Apologies for the late reaction @tomneep - and thanks again for the contribution!