docs: Gemini CLI additional options (#1223)

* Add "trust" option to MCP server configuration for bypassing confirmations

* Additional configuration

* Add co-author

Co-authored-by: Michael Vorburger <vorburger@google.com>

---------

Co-authored-by: Michael Vorburger <vorburger@google.com>

Author: LuluBeatson

docs/installation-guides/install-gemini-cli.md

@@ -40,7 +40,6 @@ The simplest way is to use GitHub's hosted MCP server:
     "mcpServers": {
         "github": {
             "httpUrl": "https://api.githubcopilot.com/mcp/",
-            "trust": true,
             "headers": {
                 "Authorization": "Bearer $GITHUB_PAT"
             }
@@ -122,6 +121,10 @@ To verify that the GitHub MCP server has been configured, start Gemini CLI in yo
     List my GitHub repositories
     ```
 
+## Additional Configuration
+
+You can find more MCP configuration options for Gemini CLI here: [MCP Configuration Structure](https://google-gemini.github.io/gemini-cli/docs/tools/mcp-server.html#configuration-structure). For example, bypassing tool confirmations or excluding specific tools.
+
 ## Troubleshooting
 
 ### Local Server Issues