Move pages under tldr, lint run.sh, update docs

tldr/linux/nmcli-general

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# nmcli general
+
+> Manage general settings of NetworkManager.
+> This subcommand can also be called with `nmcli g`.
+> More information: <https://networkmanager.dev/docs/api/latest/nmcli.html>.
+
+- Show the general status of NetworkManager:
+
+`nmcli general`
+
+- Show the hostname of the current device:
+
+`nmcli general hostname`
+
+- Change the hostname of the current device:
+
+`sudo nmcli general hostname {{new_hostname}}`
+
+- Show the permissions of NetworkManager:
+
+`nmcli general permissions`
+
+- Show the current logging level and domains:
+
+`nmcli general logging`
+
+- Set the logging level and/or domains (see `man NetworkManager.conf` for all available domains):
+
+`nmcli general logging level {{INFO|OFF|ERR|WARN|DEBUG|TRACE}} domain {{domain_1,domain_2,...}}`