Add setup documentation for data folder structure

[Copilot]

Scripts reference ./Schaefer2018-12m/ directory containing subject TSV files, but no documentation existed explaining the required setup.

Changes

• Setup instructions: Added section documenting how to create the Schaefer2018-12m/ folder and populate it with data files
• File naming convention: Documented required pattern sub-<ID>_Schaefer2018-12m.tsv
• Data format specification: 400×400 TSV connectivity matrices with ROI headers
• Folder structure diagram: Visual reference showing expected file organization
• Script execution order: Documented the 5 analysis scripts and their dependencies

Example Usage

# Create data folder
mkdir Schaefer2018-12m

# Add subject files following naming convention
# Schaefer2018-12m/sub-K1_Schaefer2018-12m.tsv
# Schaefer2018-12m/sub-P001_Schaefer2018-12m.tsv

# Run analysis pipeline
python "1) Merge_All_Shaeffler.py"
python "2) Indivudual visualization of binarized shaeffler.py"
# ...

Note: .gitignore already excludes TSV/CSV/PNG files to prevent committing patient data.

Original prompt

how to create folder

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