Merge examples of use into quickstart documentation (#23319)

docs/index.md

@@ -19,8 +19,6 @@ Jump in to Gemini CLI.
   on your system.
 - **[Authentication](./get-started/authentication.md):** Setup instructions for
   personal and enterprise accounts.
-- **[Examples](./get-started/examples.md):** Practical examples of Gemini CLI in
-  action.
 - **[CLI cheatsheet](./cli/cli-reference.md):** A quick reference for common
   commands and options.
 - **[Gemini 3 on Gemini CLI](./get-started/gemini-3.md):** Learn about Gemini 3