match line {
s if s.starts_with("###") => GeminiLine::Heading(3, s[3..].to_string()),
s if s.starts_with("##") => GeminiLine::Heading(2, s[2..].to_string()),
match line {
s if s.starts_with("###") => GeminiLine::Heading(3, s[3..].to_string()),
s if s.starts_with("##") => GeminiLine::Heading(2, s[2..].to_string()),