docs: fix simple typo, deploments -> deployments

There is a small typo in docs/collectors/LibvirtKVMCollector.md.

Should read `deployments` rather than `deploments`.

docs/collectors/LibvirtKVMCollector.md

@@ -23,7 +23,7 @@ measure_collector_time | False | Collect the collector run time in ms | bool
 metrics_blacklist | None | Regex to match metrics to block. Mutually exclusive with metrics_whitelist | NoneType
 metrics_whitelist | None | Regex to match metrics to transmit. Mutually exclusive with metrics_blacklist | NoneType
 sort_by_uuid | False | Use the <uuid> of the instance instead of the<br>
- default <name>, useful in Openstack deploments where <name> is only<br>
+ default <name>, useful in Openstack deployments where <name> is only<br>
 specific to the compute node | bool
 uri | qemu:///system | The libvirt connection URI. By default it's<br>
 'qemu:///system'. One decent option is<br>