correct tini path

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

src/Dockerfile

@@ -72,4 +72,4 @@ COPY --chmod=0755 start.sh /usr/bin/start.sh
 
 HEALTHCHECK CMD dig +short +norecurse +retry=0 @127.0.0.1 pi.hole || exit 1
 
-ENTRYPOINT ["/bin/tini", "--", "start.sh"]
+ENTRYPOINT ["/sbin/tini", "--", "start.sh"]

src/start.sh

@@ -104,7 +104,7 @@ start() {
     if [ -f "${gravityDBfile}" ]; then
       #skip set + file =>update if needed
       echo "  Skipping Gravity Database Update."
-      # TODO: Revist this path if we move to a multistage build
+      # TODO: Revisit this path if we move to a multistage build
       source /etc/.pihole/advanced/Scripts/database_migration/gravity-db.sh
       upgrade_gravityDB "${gravityDBfile}" "/etc/pihole"
     else