Update credentials.md

docs/platform-admin/workloads/assets/credentials.md

@@ -173,6 +173,7 @@ To use the secret directly from within the container, you can choose between the
 
 1. Get the secret mounted to the file system by using the [Generic secret](./datasources.md#secret) data source
 2. Get the secret as an environment variable injected into the container. There are two equivalent ways to inject the environment variable.
+
       a. By adding it to the Environment asset. 
       b. By adding it ad-hoc as part of the workload.