broken doc link for archiving logs

[herbeck558]

Describe the bug
The link on this page to the COS immutable storage doc is broken -
https://github.com/IBM/cloud-enterprise-examples/blob/master/website/src/pages/logging/archive-logs-for-long-term-storage/index.mdx

Link goes to https://cloud.ibm.com/docs/services/cloud-object-storage?topic=cloud-object-storage-immutableh
should be https://cloud.ibm.com/docs/cloud-object-storage?topic=cloud-object-storage-immutable

Also should link to the expiration settings doc and show a default expiration period in the example screen shot on the page - https://cloud.ibm.com/docs/cloud-object-storage?topic=cloud-object-storage-expiry is the link for that and a expiration of 366 days would be good to show so they know they have to set that if they want the logs actually removed at some point.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://ibm.github.io/cloud-enterprise-examples/logging/archive-logs-for-long-term-storage/
2. Click on IBM Immutable Object Storage link
3. See error

Expected behavior
Should have the right link

Screenshots
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Environment (if apply):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]
• Device: [e.g. iPhone6]

Additional context
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