add How to verify the release candidate to REAMME.md file
diff --git a/README.md b/README.md
index 0a31941..6ba7ea3 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@
 
 ### How to verify the release candidate
 
-1. Download the apache-dolphinscheduler-maven-plugin-incubating-${RELEASE.VERSION}-src.zip file from the release candidates(it will be provided in the vote email).
+1. Download the apache-dolphinscheduler-maven-plugin-incubating-${RELEASE.VERSION}-src.zip file from `the release candidates` (it will be provided in the vote email).
 
 2. unzip the apache-dolphinscheduler-maven-plugin-incubating-${RELEASE.VERSION}-src.zip file