Updates to the SPoT according to the issue description

• standardized formatting
• fixed typing errors
• better example values
• better descriptions or names
• fixed individual issues in files
• standardized boolean values
• DIDs set for participant example values
• readme in the SPoT folder
• removed duplicated files

Closes #192 (closed)
Closes #208 (closed)
Closes #212 (closed)
Closes #228 (closed)
Closes #241 (closed)