fix link to proxy-javascript (#889)
fix link to proxy-javascript (#889)

correct then link for the JavaScript Proxy SDK

Co-authored-by: Ivar Conradi Østhus <8e83882b15ff114fb9a890949a8a11ac2c97981b@gmail.com>
Unleash/unleash,Unleash/unleash,Unleash/unleash,Unleash/unleash