hier(7): typo (critial)

https://bugs.freebsd.org/261349

PR:                      261349
Reported by:             Mike Karels <mike@karels.net>
Fixes: 6469f9c hier(7): improvement, modernisation

share/man/man7/hier.7

@@ -136,7 +136,7 @@ users' home directories; whilst the layout is not standardized, the typical home
 would be
 .Pa /home/beastie/
 .It Pa /lib/
-system libraries that are critial to binaries in
+system libraries that are critical to binaries in
 .Pa /bin
 and
 .Pa /sbin
@@ -156,7 +156,7 @@ vendor-specific libraries to extend the
 utility
 .El
 .It Pa /libexec/
-system utilities that are critial to binaries in
+system utilities that are critical to binaries in
 .Pa /bin
 and
 .Pa /sbin