add discord channel link and OpenAI doc search template link

apps/www/_blog/2023-04-07-launch-week-7-hackathon.mdx

@@ -15,7 +15,7 @@ toc_depth: 2
 
 The hackathon starts **now** and ends Monday 16th April at 11:59 pm. You can win extremily limited edition Launch Week themed mechanical keyboards and limited edition Supabase swag.
 
-For some inspiration check out the [Next.js OpenAI Doc Search template]() released yesterday and [storing embeddings on Supabase article](https://supabase.com/blog/openai-embeddings-postgres-vector).
+For some inspiration check out the [Next.js OpenAI Doc Search template](https://github.com/supabase-community/nextjs-openai-doc-search?og=v2) released yesterday and [storing embeddings on Supabase article](https://supabase.com/blog/openai-embeddings-postgres-vector).
 
 Additionally, you can see all the [winners from previous hackathons](https://supabase.com/blog/tags/hackathon).
 
@@ -87,7 +87,7 @@ We will be looking for:
 
 The Supabase Team will be taking part in the Hackathon and you'll find us live to build in our discord all week. Please join us by building in public:
 
-- Text channel: hackathon
+- Text channel: [#hackathon](https://discord.gg/UYyweApy)
 - Audio channel: hackathon
 
 If you need help or advice when building, find other people to join your team, or if you just want to chill and watch people build, come and join us!