HADOOP-17147. Dead link in hadoop-kms/index.md.vm. Contributed by Xieming Li.

(cherry picked from commit d5b476615820a7fa75b41e323db5deb5c2ed3bd5)

hadoop-common-project/hadoop-kms/src/site/markdown/index.md.vm

@@ -307,7 +307,7 @@ Configure `etc/hadoop/ssl-server.xml` with proper values, for example:
 ```
 
 The SSL passwords can be secured by a credential provider. See
-[Credential Provider API](../../../hadoop-project-dist/hadoop-common/CredentialProviderAPI.html).
+[Credential Provider API](../hadoop-project-dist/hadoop-common/CredentialProviderAPI.html).
 
 You need to create an SSL certificate for the KMS. As the `kms` Unix user, using the Java `keytool` command to create the SSL certificate: