Update Tibet tour permit policy

 Due to the covid-19 epidemic  outbreaking over  china and world  since 2019 until now . Almost influence three year for people's live.also serious impact the tourist industry while influence the Tibet tourist ,it's only because of the pandemic impaction the Tibet tourist adiminastration have changged the permit application policy since 2019 ,almost prohibit inbound tourist to Tibet ,only allow the foreigner whom work or hold the residence permit with Chinaese visa for Tibet.,Particularly strictly controled the tourists 48hrs Nucleic acid testing QR and green health QR. Otherwise ,cannot pass the tourist bureau audit.