Update README.md

Updated to fix number of rows and adding reference to the reduced dataset https://huggingface.co/datasets/DavidVivancos/MindBigData2023_MNIST-2B

README.md

@@ -10,13 +10,16 @@ Supporting dataset for paper https://arxiv.org/abs/2306.00455
 The dataset contains 140,000 records from 128 EEG channels, each of 2 seconds, recorded at 250hz, in total 17,920,000 brain signals and 8,960,000,000 data points.
 
 It consists of 2 main csv data files:
-- “train.csv” 45Gb Header + 60,000 rows 63,790 columns
-- “test.csv” 7,52Gb Header + 10,000 rows 63,790 columns
+- “train.csv” 45Gb Header + 120,000 rows 63,790 columns
+- “test.csv” 7,52Gb Header + 20,000 rows 63,790 columns
 
 10 audio files at a folder named “audiolabels”: “0.wav”, “1.wav”......“9.wav”
 
 And 1 csv file with 3d coordinates of the EEG electrodes: “3Dcoords.csv” 4,27Kb Header + 130 rows 4 columns
 
+
+>update July 18th 2023: As requested a reduced 2Billion datapoints is realeased https://huggingface.co/datasets/DavidVivancos/MindBigData2023_MNIST-2B
+
 ## Dataset Structure
 
 review supporting paper https://arxiv.org/abs/2306.00455