diff --git a/README.md b/README.md
index f7d397d..639b2af 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,12 @@
-```mvn liquibase:diff -X > liquibase_log/liquibase_log_diff-$(date +%Y%m%d%H%M%S).log``` \
-```sed -i 's/\[\x220001-01-01T00:00:00+00:00\x22\]/\x27\[\x220001-01-01T00:00:00+00:00\x22\]\x27/g' changelog-dir/diff-changelog/*.sql```  \
-```mvn liquibase:update -X > liquibase_log/liquibase_log_update-$(date +%Y%m%d%H%M%S).log```  \
-```mvn liquibase:history > liquibase_log/liquibase_log_history-$(date +%Y%m%d%H%M%S).log```  \
+```shell
+mvn liquibase:diff -X > liquibase_log/liquibase_log_diff-$(date +%Y%m%d%H%M%S).log
+``` \
+```shell
+sed -i 's/\[\x220001-01-01T00:00:00+00:00\x22\]/\x27\[\x220001-01-01T00:00:00+00:00\x22\]\x27/g' changelog-dir/diff-changelog/*.sql
+```  \
+```shell
+mvn liquibase:update -X > liquibase_log/liquibase_log_update-$(date +%Y%m%d%H%M%S).log
+```  \
+```shell
+mvn liquibase:history > liquibase_log/liquibase_log_history-$(date +%Y%m%d%H%M%S).log
+```  \