Update quasiperiodic.md
Update quasiperiodic.md
OpenAstronomy/openastronomy.github.io,dpshelio/openastronomy.github.io,Cadair/openastronomy.github.io,dpshelio/openastronomy.github.io,OpenAstronomy/openastronomy.github.io,dpshelio/openastronomy.github.io,Cadair/openastronomy.github.io,OpenAstronomy/openastronomy.github.io,Cadair/openastronomy.github.io