systemd-repart: add page (#10880)

* systemd-repart: add page

* Update pages/linux/systemd-repart.md

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

---------

Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

pages/linux/systemd-repart.md

@@ -0,0 +1,18 @@
+# systemd-repart
+
+> Automatically grow and add partitions.
+> Grows and adds partitions based on the configuration files described in repart.d.
+> Does not automatically resize file system on partition. See systemd-growfs to extend file system.
+> More information: <https://www.freedesktop.org/software/systemd/man/systemd-repart.html>.
+
+- Grow the root partition (/) to all available disk space:
+
+`systemd-repart`
+
+- View changes without applying:
+
+`systemd-repart --dry-run=yes`
+
+- Grow root partition size to 10 gigabytes:
+
+`systemd-repart --size=10G --root /`