Fix test

Dependencies

• [2] KP6SZZ34 Fix building without parsers
• [3] Y55SCAUN Finish gemtext parsing implementation
• [*] J4PKMKJX Add root doc comment, gemtext module

Change contents

• replacement in gemini/src/gemtext.rs at line 320
  [2.252]→[2.252:326](∅→∅)
  − .preformatted(Some("logo"), "wooo\n/^^^^\\\n| |\n\\____/")
  [2.252]

  [2.326]
  + .line()

  + .preformatted(Some("logo"), " wooo\n/^^^^\\\n| |\n\\____/")
• replacement in gemini/src/gemtext.rs at line 333
  [2.743]→[2.743:766](∅→∅)
  − r#"```logo
  [2.743]

  [2.766]
  + r#"

  + ```logo