Merge pull request #8260 from supabase/fix/preview-2.0

fix: adds pre release instr

apps/www/_blog/2022-08-10-launch-week-5-hackathon.mdx

@@ -20,6 +20,8 @@ There's a $1500 GitHub sponsorship and [gold Supabase caps](https://store.supaba
 
 [Supabase-js v2.0](https://github.com/supabase/supabase-js/releases) and [Flutter SDK v1.0](https://supabase.com/blog/supabase-flutter-sdk-1-developer-preview) will both be announced during Launch Week, they are both available already and using them in your project will gain extra credit!
 
+You can access the supabase-js pre-release, including the new interface by running `npm install @supabase/supabase-js@next`.
+
 <iframe
   className="video-with-border w-full"
   width="640"