Fix internal anchor link

Author: mikemaccana

apps/docs/content/docs/en/programs/examples.mdx

@@ -22,7 +22,7 @@ example programs within them:
 - [Tokens](#tokens)
 - [Token Extensions (Token 2022)](#token-2022-token-extensions)
 
-There are also [ecosystem program examples](#third-party-solana-program-examples)
+There are also [ecosystem program examples](#ecosystem-solana-program-examples)
 
 ## Basics