Improve the grammar of a note explaining that the execution of the call
that activates ceph-volume is idempotent.
Signed-off-by: Zac Dover <zac.dover@proton.me>
UUID (also called ``fsid`` in Ceph CLI tools), so that at boot time it can
understand what OSD is enabled and needs to be mounted.
-.. note:: The execution of this call is fully idempotent, and there is no
- side-effects when running multiple times
+.. note:: The execution of this call is fully idempotent. This means that the
+ call can be executed multiple times without changing the result of its first
+ successful execution.
For OSDs deployed by cephadm, please refer to :ref:`cephadm-osd-activate`
instead.