Fix broken link (#1141)

articles/what_is_new_with_dalle_3.mdx

@@ -96,7 +96,7 @@ Have you ever struggled to find the perfect icon for your website or app? It wou
 
 ![icon_set](/images/dalle_3/icon_set.jpg)
 
-In this case, I used Potrace to convert the images to SVGs, which you can download [here](http://potrace.sourceforge.net/). This is what I used to convert the images:
+In this case, I used Potrace to convert the images to SVGs, which you can download [here](https://potrace.sourceforge.net/). This is what I used to convert the images:
 
 ```bash
 potrace -s cat.jpg -o cat.svg

examples/vector_databases/README.md

@@ -24,7 +24,7 @@ Each provider has their own named directory, with a standard notebook to introdu
 - [Redis](https://github.com/RedisVentures/simple-vecsim-intro)
 - [SingleStoreDB](https://www.singlestore.com/blog/how-to-get-started-with-singlestore/)
 - [Supabase](https://supabase.com/docs/guides/ai)
-- [Tembo](https://tembo.io/docs/tembo-stacks/vector-db)
+- [Tembo](https://tembo.io/docs/product/stacks/ai/vectordb)
 - [Typesense](https://typesense.org/docs/guide/)
 - [Vespa AI](https://vespa.ai/)
 - [Weaviate](https://weaviate.io/developers/weaviate/quickstart)