fix: Correct typo in chrootdirs option

In explanation of chrootdirs option, leading / is dropped
from podman managed file path (/etc/hostname). So this PR
adds leading /.

Signed-off-by: Vanou Ishii <[email protected]>

Author: vanou

docs/source/markdown/options/chrootdirs.md

@@ -5,5 +5,5 @@
 #### **--chrootdirs**=*path*
 
 Path to a directory inside the container that is treated as a `chroot` directory.
-Any Podman managed file (e.g., /etc/resolv.conf, /etc/hosts, etc/hostname) that is mounted into the root directory is mounted into that location as well.
+Any Podman managed file (e.g., /etc/resolv.conf, /etc/hosts, /etc/hostname) that is mounted into the root directory is mounted into that location as well.
 Multiple directories are separated with a comma.