Adds systemd-inhibit and examples (#8989)

docs/faq.rst

@@ -150,7 +150,11 @@ My machine goes to sleep causing `Broken pipe`
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 While backing up your data over the network, your machine should not go to sleep.
-On macOS you can use `caffeinate` to avoid that.
+On Linux you can use `systemd-inhibit` to avoid that. On macOS you can use `caffeinate`.
+
+``systemd-inhibit borg create ...``
+
+``caffeinate -i borg create ...``
 
 How can I compare contents of an archive to my local filesystem?
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