feat: update README with link to RTX 5000 release

Author: Tom94

README.md

@@ -19,6 +19,7 @@ For business inquiries, please submit the [NVIDIA research licensing form](https
 
 If you have Windows, download one of the following releases corresponding to your graphics card and extract it. Then, start `instant-ngp.exe`.
 
+- [**RTX 5000 series and other Blackwell cards**](https://github.com/NVlabs/instant-ngp/releases/download/continuous/Instant-NGP-for-RTX-5000.zip)
 - [**RTX 3000 & 4000 series, RTX A4000–A6000**, and other Ampere & Ada cards](https://github.com/NVlabs/instant-ngp/releases/download/continuous/Instant-NGP-for-RTX-3000-and-4000.zip)
 - [**RTX 2000 series, Titan RTX, Quadro RTX 4000–8000**, and other Turing cards](https://github.com/NVlabs/instant-ngp/releases/download/continuous/Instant-NGP-for-RTX-2000.zip)
 - [**GTX 1000 series, Titan Xp, Quadro P1000–P6000**, and other Pascal cards](https://github.com/NVlabs/instant-ngp/releases/download/continuous/Instant-NGP-for-GTX-1000.zip)