fix(docs): remove remaining nationality references

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: VinciGit00

services/cli/commands.mdx

@@ -28,7 +28,6 @@ just-scrape search <query> --schema <json>
 just-scrape search <query> --location-geo-code <code>    # geo-target (e.g. 'us', 'de', 'jp-tk')
 just-scrape search <query> --time-range <range>          # past_hour | past_24_hours | past_week | past_month | past_year
 just-scrape search <query> --format <markdown|html>      # result format (default markdown)
-just-scrape search <query> --nationality <iso>           # 2-letter ISO nationality code
 just-scrape search <query> --headers <json>
 ```