Update cheatsheets

tldr/linux/systemctl-reload

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# systemctl reload
+
+> Reload a service's configuration without restarting it.
+> This reloads the service itself (like Apache or Nginx configs), not the systemd unit file.
+> To reload unit files, use `systemctl daemon-reload`.
+
+- Reload a service:
+
+`systemctl reload {{nginx}}`
+
+- Reload multiple services:
+
+`systemctl reload {{networking apache2 ...}}`
+
+- Reload a service for the current user:
+
+`systemctl --user reload {{pipewire}}`