업데이트 'README.md'

README.md

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 2. Kim, B., Hwang, E., Strecker, R. E., Choi, J. H., & Kim, Y. (2020). Differential modulation of NREM sleep regulation and EEG topography by chronic sleep restriction in mice. Scientific reports, 10(1), 1-13.
 
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 ## 2. How to start
 
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 ``` 
  
 Reference: https://gin.g-node.org/G-Node/Info/wiki/GIN+CLI+Usage+Tutorial
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 ## 3. Analysis tutorial
 
 ### 3-1) Loading EEG data