fix: missing comma in sample code (#8286)
fix: missing comma in sample code (#8286)

this commit makes it valid!
google/WebFundamentals,myakura/WebFundamentals,myakura/WebFundamentals,myakura/WebFundamentals,google/WebFundamentals,google/WebFundamentals,myakura/WebFundamentals,google/WebFundamentals