Add JNation 2025

README.md

@@ -29,6 +29,7 @@ Missing a conference, seeing an issue or something needs an update? Send a pull
 | [JCON EUROPE](https://2025.europe.jcon.one/) | Cologne, Germany | no | 19-22 May 2025 | [Link](https://sessionize.com/jcon-europe-2025) (Closes 15 November 2024) 🟢 |
 | [GeeCON](https://geecon.org) | Krakow, Poland | no | 14-16 May 2025 | - |
 | [KotlinConf](https://kotlinconf.com/) | Copenhagen, Denmark | no | 21-23 May 2025 | [Link](https://sessionize.com/kotlinconf-2025) (Closes 30 November 2024) 🟢 |
+| [JNation](https://jnation.pt/) | Coimbra, Portugal | no | 27-28 May 2025 | [Link](https://sessionize.com/jnation-2025/) (Closes 31 December 2024) 🟢 |
 | [JCON OpenBlend Slovenia](https://slovenia.jcon.one) | Portorož, Slovenia | no | 28-30 May 2025 | - |
 | [JSail](https://jsail.ijug.eu/) | Hemelum, The Netherlands | no | 23-27 June 2025 | Unconference, no CFP |
 | [Devoxx Poland](https://devoxx.pl/) | Krakow, Poland | no | 11-13 June 2025 | - |