Content is now organized by game version and source

This link potentially matches multiple versions of "Gnoll":

• Gnoll (Monstrous Menagerie)

  CR 1/2 · Humanoid (Medium)

• Gnoll (System Reference Document 5.1)

  CR 1/2 · Humanoid (Medium)

• Gnoll (Black Flag SRD)

  CR 1/2 · Humanoid (Medium)