* Add missing commas, correction of spelling errors
* Fix additional grammar issues in documentation
- Fix 'ip' to 'IP' and add missing article 'the same IP'
- Fix 'openwrt' to 'OpenWrt' (proper capitalization)
- Fix 'have' to 'has' for singular subject
- Fix 'device' to 'devices' (plural)
- Fix 'threat' to 'treats' (typo)
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Co-authored-by: Anton Patsev <patsev.anton@gmail.com>