Fix typo in Docker.md

Trivial typo fix

src/manual/Installing/Docker.md

@@ -225,7 +225,7 @@ As with `clamscan`, `clamdscan` can also be run when installed on the host, by c
 
 ### Dockerized ClamDScan
 
-Running both `clamd` and `clamdscan` is also easily possible, as all that is needed is the shared socket between the two containers. The only cavaet here is to:
+Running both `clamd` and `clamdscan` is also easily possible, as all that is needed is the shared socket between the two containers. The only caveat here is to:
 1. mount the files to be scanned in the container that will run `clamd`, or
 2. mount the files to be scanned in the container that will `clamdscan` run if using `clamdscan --stream`. The `--stream` option will be slower, but enables submitting files from a different machine on a network.