docs: update snapshot disk space topic heading
@@ -241,7 +241,7 @@ reason, the wall-clock should be updated to the current time, on the guest-side.
More details on how you could do this can be found at a
[related FAQ](../../FAQ.md#my-guest-wall-clock-is-drifting-how-can-i-fix-it).
-### Important notes
+### Provisioning host disk space for snapshots
Depending on VM memory size, snapshots can consume a lot of disk space. Firecracker
integrators **must** ensure that the provisioned disk space is sufficient for normal
