update banner links

Author: m-abdelwahab

src/components/banner.tsx

@@ -8,7 +8,7 @@ export const Banner = () => {
  This playground enables you to connect to a Neon Postgres database
  directly from your browser. You can learn more about{' '}
  <a
- href="https://neon.tech/blog"
+ href="https://neon.tech/blog/postgres-ai-playground"
  className="text-green-base font-semibold hover:underline"
  >
  how it works
@@ -18,7 +18,7 @@ export const Banner = () => {
  <br />
  If you don&apos;t have a Neon database, you can{' '}
  <a
- href="https://console.neon.tech"
+ href="https://console.neon.tech?utm_source=playground&utm_medium=banner"
  className="text-green-base font-semibold hover:underline"
  >
  {' '}