Simplify JSON for installing dev tools

Author: jamiew

docs/tools/debugging.mdx

@@ -60,13 +60,10 @@ The logs capture:
 
 Access Chrome's developer tools inside Claude Desktop to investigate client-side errors:
 
-1. Enable the `allowDevTools` flag in your `developer_settings.json` file:
+1. Create a `developer_settings.json` file with `allowDevTools` set to true:
 
 ```bash
-[ -s ~/Library/Application\ Support/Claude/developer_settings.json ] \
-   && jq '.allowDevTools = true' ~/Library/Application\ Support/Claude/developer_settings.json > tmp.json \
-   || echo '{"allowDevTools": true}' > tmp.json \
-   && mv tmp.json ~/Library/Application\ Support/Claude/developer_settings.json
+echo '{"allow_dev_tools": true }' > ~/Library/Application\ Support/Claude/developer_settings.json
 ```
 
 2. Open DevTools: `Command-Option-Shift-i`