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

tldr/linux/protonvpn-cli

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# protonvpn-cli
+
+> Official ProtonVPN client.
+> See also: `protonvpn-cli-connect`.
+> More information: <https://github.com/ProtonVPN/linux-cli>.
+
+- Log in to the ProtonVPN account:
+
+`protonvpn-cli login {{username}}`
+
+- Start a kill switch upon connecting to ProtonVPN:
+
+`protonvpn-cli killswitch --on`
+
+- Connect to ProtonVPN interactively:
+
+`protonvpn-cli connect`
+
+- Display connection status:
+
+`protonvpn-cli status`
+
+- Block malware using ProtonVPN NetShield:
+
+`protonvpn-cli netshield --malware`
+
+- Disconnect from ProtonVPN:
+
+`protonvpn-cli disconnect`
+
+- Display the current ProtonVPN configuration:
+
+`protonvpn-cli config --list`
+
+- Display help for a subcommand:
+
+`protonvpn-cli {{subcommand}} --help`