Update jsxc_launch.html
Update jsxc_launch.html

All static links changed.

Referencing #718

freedomboxtwh/Plinth,harry-7/Plinth,harry-7/Plinth,kkampardi/Plinth,freedomboxtwh/Plinth,vignanl/Plinth,vignanl/Plinth,harry-7/Plinth,harry-7/Plinth,kkampardi/Plinth,kkampardi/Plinth,vignanl/Plinth,freedomboxtwh/Plinth,kkampardi/Plinth,vignanl/Plinth,freedomboxtwh/Plinth,harry-7/Plinth,vignanl/Plinth,kkampardi/Plinth,freedomboxtwh/Plinth