Fix Issue #39: Add ChIP-seq Large Margin Visualization to Gallery

[ANAMASGARD]

Fixes #39
Fixes #35

This PR adds the ChIP-seq large margin visualization AND fixes the title mismatch issue.

1. ChIP-seq Large Margin Viz (Issue #39)

Source Code

• Repo: https://github.com/ANAMASGARD/chip-seq-large-margin-code
• Ported from old animint to animint2 syntax
• Added auto-download for required data files

Deployed Viz

• Repo: https://github.com/ANAMASGARD/chip-seq-large-margin
• Live at: https://ANAMASGARD.github.io/chip-seq-large-margin/
• Deployed with animint2pages() including title and source parameters

Gallery Update

• Added ANAMASGARD/chip-seq-large-margin to repos.txt
• Generated screenshot: repos/ANAMASGARD/chip-seq-large-margin.png

2. Gallery Title Fix (Issue #35)

Fixed title mismatch for climate visualization:

• Before: "Climate change sensor stations"
• After: "CRUTEM4 Temperature Sensor Stations"

The title now matches what's in the source code. Fixed by clearing cached metadata and re-running update_gallery().

Preview

https://ANAMASGARD.github.io/gallery/

@tdhock This is ready for review!