[Docs] Linux Service Edit

[bagasme]

Per title:

• Rename the h3 title to be more generic
• Invite to edit config files, instead of running sudo vim
• Use systemctl enable --now instead of running systemctl enable and systemctl start separately

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@c928863). Click here to learn what that means.
The diff coverage is 100%.

@@            Coverage Diff            @@
##             master    #9633   +/-   ##
=========================================
  Coverage          ?   42.18%           
=========================================
  Files             ?      583           
  Lines             ?    77238           
  Branches          ?        0           
=========================================
  Hits              ?    32586           
  Misses            ?    40643           
  Partials          ?     4009

Impacted Files	Coverage Δ
modules/setting/queue.go	79.41% <100%> (ø)

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[6543]

shortcuts are good for those who already know ...

[sapk]

I don't think that the `` miss click will redo the review. sorry.

[sapk]

The such as vim doesn't add any value to the docs. Users that edit service file should know what is an editor.