Update KabCash as sponsor

[jesuscast]

We started sponsoring since #273

And just upgraded our sponsorship to 50 USD/m, could you add us to the sponsor section? https://github.com/javalin/javalin/?tab=readme-ov-file#sponsors

Thank you!

[tipsy]

Thanks @jesuscast ! I've updated the readme, would you also like your logo+link on the website?

https://javalin.io/#our-sponsors

[jesuscast]

Yes we'd appreciate that @tipsy , link is https://kab.cash/

[tipsy]

Thanks @jesuscast - live here: https://javalin.io/#our-sponsors