Update README.md

README.md

@@ -15,7 +15,8 @@ A tar ball is [here](https://drive.google.com/file/d/1Te94WlQ4nGCT3rnij_w0pbPFhR
 During the recording, the MRI scanner did not collect any images. No so-called "gradient artifacts" caused by the swithcing of the imaging gradient coils of MRI was present.
 
 ## Code
-- [Data input (Matlab)](https://github.com/fahsuanlin/BCGunet/blob/main/matlab/read_eeg.m): An example of reading EEG data. Each EEG recording has three files with .eeg, .vmrk, and .vhdr file suffix. Supply the .vmrk and .vmrk file names to read data into Matlab.
+- [Data input (Matlab)](https://github.com/fahsuanlin/BCGunet/blob/main/matlab/read_eeg.m): An example of reading EEG data. Each EEG recording has three files with .eeg, .vmrk, and .vhdr file suffix. Supply the .vmrk and .vmrk file names to read data into Matlab. Need functions at [bvaloader](https://github.com/stefanSchinkel/bvaloader).
+
 **NOTE**: Do not change the file names because data are associated with the file name.
 
 - [Unet basic structure and BCG suppression (Python)](https://github.com/fahsuanlin/BCGunet/blob/main/bcg_unet/unet1d-simple.ipynb): perform BCG suppression by Unet, including training and testing of data from the same subject.