Update env-example for mssql

env-example

@@ -69,6 +69,11 @@ MYSQL_PASSWORD=secret
 MYSQL_PORT=3306
 MYSQL_ROOT_PASSWORD=root
 
+### MSSQL Container
+MSSQL_DATABASE=homestead
+MSSQL_PASSWORD=yourStrong(!)Password
+MSSQL_PORT=1433
+
 ### MARIADB Container
 MARIADB_DATABASE=default
 MARIADB_USER=default