Update CHANGELOG.md

CHANGELOG.md

@@ -45,7 +45,7 @@ Examples & Benchmarks:
 ## [0.3.5] - 2023-02-23
 
 A stable version that achieves:
-- The vanilla Nerf model with 8-layer MLPs can be trained to better quality (+~0.5 PNSR) in 1 hour rather than 1~2 days as in the paper.
+- The vanilla Nerf model with 8-layer MLPs can be trained to better quality (+0.5 PNSR) in 1 hour rather than days as in the paper.
 - The Instant-NGP Nerf model can be trained to equal quality in 4.5 minutes, comparing to the official pure-CUDA implementation.
 - The D-Nerf model for dynamic objects can also be trained in 1 hour rather than 2 days as in the paper, and with better quality (+~2.5 PSNR).
 - Both bounded and unbounded scenes are supported.