Update README to simplify dataset structure description

Removed frame count from dataset structure documentation.

Author: cmanzo

README.md

@@ -30,8 +30,8 @@ If you use this dataset in your research, please follow the licensing requiremen
 
 ```bash
 /particle_dataset 
-├── low_noise.avi # Low-noise video of trapped particle (100 frames) 
-└── high_noise.avi # High-noise video of trapped particle (100 frames)
+├── low_noise.avi # Low-noise video of trapped particle
+└── high_noise.avi # High-noise video of trapped particle
 ```
 
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