Update _reference-docs.yaml (#8564)
Update _reference-docs.yaml (#8564)

Fixed broken link to range requests page.
google/WebFundamentals,myakura/WebFundamentals,myakura/WebFundamentals,google/WebFundamentals,myakura/WebFundamentals,myakura/WebFundamentals,google/WebFundamentals,google/WebFundamentals