Update README.md

README.md

@@ -262,6 +262,7 @@ All the data (past and coming) are available publicly in JSON:
 * 15: [KubeDay Australia](https://events.linuxfoundation.org/kubeday-australia/) - Melbourne (Australia) <a href="https://events.linuxfoundation.org/kubeday-australia/program/cfp/"><img alt="CFP KubeDay Australia" src="https://img.shields.io/static/v1?label=CFP&message=until%2028-June-2024&color=red"></a>
 * 15-16: [Voxxed Days Cluj](https://romania.voxxeddays.com/voxxed-days-cluj-2024/) - Cluj-Napoca (Romania) <a href="https://vdcluj24.cfp.dev/#/login"><img alt="CFP Voxxed Days Cluj" src="https://img.shields.io/static/v1?label=CFP&message=until%2002-August-2024&color=red"></a>
 * 15-16: [Malt Tech Days 2024](https://www.papercall.io/mtd-2024) - Paris (France) <a href="https://www.papercall.io/mtd-2024"><img alt="CFP Malt Tech Days 2024" src="https://img.shields.io/static/v1?label=CFP&message=until%2030-August-2024&color=red"></a>
+* 15-16: [Nephio R4 Summit](https://lf-nephio.atlassian.net/wiki/spaces/HOME/pages/16908293/Nephio+R4+Summit+-+Oct+2024) - Sunnyvale, CA (USA)
 * 16: [Dapr Day](https://community.cncf.io/events/details/cncf-virtual-project-events-2024-hosted-by-cncf-presents-dapr-day-virtual-october-2024/) - Online <a href="https://sessionize.com/dapr-day-oct-2024-virtual/"><img alt="CFP Dapr Day Oct 2024" src="https://img.shields.io/static/v1?label=CFP&message=until%2005-August-2024&color=red"></a>
 * 16: [DotPy](https://www.dotpy.io/) - Paris (France) <a href="https://www.dotpy.io/cfp"><img alt="CFP DotPy 2024" src="https://img.shields.io/static/v1?label=CFP&message=until%2030-April-2024&color=red"></a>
 * 16-17: [API Days Australia](https://www.apidays.global/singapore/) - Melbourne (Australia) <a href="https://apidays.typeform.com/to/ILJeAaV8"><img alt="CFP API Days Australia" src="https://img.shields.io/static/v1?label=CFP&message=until%2016-September-2024&color=red"></a>