DBChangelog.xml not found when running Liquibase on SQL Server (MSSQL) for the first time

Trying to set up for MSSQL. Getting -
C:/Users/tshirey/Documents/LiquibaseMSSQL/dbchangelog.xml was not found in
- C:\Users\tshirey\Documents\LiquibaseMSSQL.
- C:\Users\tshirey\Documents\LiquibaseMSSQL\Liquibase_Drivers\mssql-jdbc-8.4.1.jre11.jar
Specifying files by absolute path was removed in Liquibase 4.0. Please use a relative path or add ‘/’ to the classpath parameter.
For more information, please use the --logLevel flag

properties file
changeLogFile: C:\Users\tshirey\Documents\LiquibaseMSSQL\dbchangelog.xml
url: jdbc:sqlserver://:1433;database=Deploy_Test;
username: Liquibase
driver: com.microsoft.sqlserver.jdbc.SQLServerDriver
classpath: /Users/tshirey/Documents/LiquibaseMSSQL/Liquibase_Drivers/mssql-jdbc-8.4.1.jre11.jar

No matter how I cahnge the file I get an error.

The dbchangelog.xml is in the location specified. What am I doing wrong?

I found out the issue. The tutorial for Liquibase on MSSQL had an example:

changeLogFile: C:\Users\Administrator\LiquibaseMSSQL\dbchangelog.xml
url: jdbc:sqlserver://localhost:1433;database=MYDATABASE;
username: system
password: password
driver: com.microsoft.sqlserver.jdbc.SQLServerDriver
classpath: …/…/Liquibase_Drivers/mssql-jdbc-7.4.1.jar

I had to change the changeLogFile entry to

changeLogFile: \dbchangelog.xml

after that liquibase could find the file