fixed GECOS field name

[ckorobov]

What type of PR is this? (check all applicable)

• [ ] ♻️ Refactor
• [ ] ✨ New Chapter
• [X] 🐛 Bug Fix/Typo
• [ ] 👷 Optimization
• [ ] 📝 Documentation Update
• [ ] 🚩 Other

Description

Renamed Gecos field in /etc/passwd file desciption (https://en.wikipedia.org/wiki/Gecos_field)

Related Tickets & Documents

Added to documentation?

• [] 📜 readme
• [X] 🙅 no documentation needed

[optional] What gif best describes this PR or how it makes you feel?

[ckorobov]

@bobbyiliev can you kindly review it before the end of the month, please?