Add JOTB25.md (#1288)

* Update README.md

* fix: JOTB

---------

Co-authored-by: Aurelie Vache <scraly@gmail.com>

README.md

@@ -286,6 +286,8 @@ All the data (past and coming) are available publicly in JSON:
 * 14-15: [DevOpsDays Singapore 2025](https://www.devopsdays.org/events/2025-singapore/program/) - Singapore (Singapore) <a href="https://www.papercall.io/dodsin24"><img alt="CFP DevOpsDays 2025" src="https://img.shields.io/static/v1?label=CFP&message=until%2015-February-2025&color=green"></a>
 * 14-15: [APIdays New York](https://www.apidays.global/new-york/) - New York, NY (USA) <a href="https://apidays.typeform.com/to/ILJeAaV8"><img alt="CFP API Days New York" src="https://img.shields.io/static/v1?label=CFP&message=until%2014-April-2025&color=green"></a>
 * 14-15: [jPrime](http://jprime.io/) - Sofia (Bulgaria) <a href="https://jprime.io/cfp"><img alt="CFP jPrime" src="https://img.shields.io/static/v1?label=CFP&message=until%2014-February-2025&color=green"></a>
+* 14-16: [J On The Beach 2025](https://www.jonthebeach.com) - Malaga (Spain) <a href="https://confeti.app/"><img alt="J On The Beach 2025" src="https://img.shields.io/static/v1?label=CFP&message=until%2020-January-2025&color=green""></a> <img alt="Closed Captions" src="https://img.shields.io/static/v1?label=CC&message=Closed%20Captions&color=blue" />
+></a>
 * 14-16: [GeeCON 2025](https://2025.geecon.org) - Krakow (Poland) <a href="https://2025.geecon.org/cfp/"><img alt="CFP GeeCON 2025" src="https://img.shields.io/static/v1?label=CFP&message=until%2031-January-2025&color=green"></a>
 * 14-22: [PyConUS 2025](https://us.pycon.org/2025/) - Pittsburgh, PA (USA)
 * 15: [KCD Austin](https://community.cncf.io/events/details/cncf-kcd-texas-presents-kcd-texas-austin-2025/) - Austin, TX (USA) <a href="https://sessionize.com/kcd-texas-2025/"><img alt="CFP KCD Austin, Texas 2025" src="https://img.shields.io/static/v1?label=CFP&message=until%2012-February-2025&color=green"></a>