turtle from home:Ledest:erlang:21 project

需要 openSUSE Leap 15.5 ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:Ledest:erlang:21/openSUSE_Leap_15.5/home:Ledest:erlang:21.repo
zypper refresh
zypper install turtle