helm repo changed, should be corrected

[munger1985]

https://github.com/NVIDIA/nim-deploy/tree/main/cloud-service-providers/oracle/oke
pls correct it from
helm repo add nvidia https://helm.ngc.nvidia.com/nvidia

to

helm repo add nvidia https://helm.ngc.nvidia.com/nim
--username='$oauthtoken'
--password=$NGC_API_KEY

it needs to be updated. which is under Chapter
11. Deploy LLaMA 3-8B Model Using Helm