Update logging-loki-storage-aws.adoc

- Incorrect command structure in Loki Object Storage documentation
- Here is the doc link for AWS storage:
https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/logging/log-storage-4#logging-loki-storage-aws_installing-log-storage
- the "-" signs are incorrectly placed below the "$" symbol.
- However, they should be aligned parallel to the "oc" command, where the command begins.
- Performing the following changes through this PR:
~~~
$ oc -n openshift-logging create secret generic "logging-loki-aws" \
  --from-literal=bucketnames="<s3_bucket_name>" \
  --from-literal=region="<bucket_region>" \
  --from-literal=audience="<oidc_audience>" 1  
~~~

Author: prithvipatil97

modules/logging-loki-storage-aws.adoc

@@ -36,8 +36,8 @@ You can create the Loki object storage secret manually by running the following
 [source,terminal,subs="+quotes"]
 ----
 $ oc -n openshift-logging create secret generic "logging-loki-aws" \
---from-literal=bucketnames="<s3_bucket_name>" \
---from-literal=region="<bucket_region>" \
---from-literal=audience="<oidc_audience>" <1>
+  --from-literal=bucketnames="<s3_bucket_name>" \
+  --from-literal=region="<bucket_region>" \
+  --from-literal=audience="<oidc_audience>" <1>
 ----
 <1> Optional annotation, default value is `openshift`.