update docs

README.md

@@ -229,7 +229,7 @@ bash script.sh nerfsyn-nerfacc-occgrid 0
 @article{li2023nerfacc,
   title={NerfAcc: Efficient Sampling Accelerates NeRFs.},
   author={Li, Ruilong and Gao, Hang and Tancik, Matthew and Kanazawa, Angjoo},
-  journal={To Be Updated},
+  journal={arXiv preprint arXiv:2305.04966},
   year={2023}
 }
 ```

docs/source/index.rst

@@ -16,7 +16,7 @@ in training various recent NeRF papers.
 |
 
 | Github: https://github.com/KAIR-BAIR/nerfacc
-| Paper: https://arxiv.org/pdf/2210.04847.pdf (To Be Updated)
+| Paper: https://arxiv.org/pdf/2305.04966.pdf
 | Authors: `Ruilong Li`_, `Hang Gao`_, `Matthew Tancik`_, `Angjoo Kanazawa`_
 
 .. note::