add rivers to pangea (#840)

## Description:
improve map pangea (adding rivers)

## Please complete the following:
before :
![Capture d'écran 2025-05-21
221947](https://github.com/user-attachments/assets/c18adf6e-2e48-41be-9e16-5dc4ff9d9a43)

after :
![Capture d'écran 2025-05-21
221853](https://github.com/user-attachments/assets/8d5b05fc-1b5e-46c6-99ba-db3d21defccd)


<napnap>
This commit is contained in:
Greymald
2025-05-22 00:55:15 +02:00
committed by GitHub
parent 01eaf00bd6
commit ac47889938
4 changed files with 2 additions and 2 deletions
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