* VAULT-6091 Document duration format
* VAULT-6091 Document duration format
* VAULT-6091 Update wording
* VAULT-6091 Update to duration format string, replace everywhere I've found so far
* VAULT-6091 Add the word 'string' to the nav bar
* VAULT-6091 fix link
* VAULT-6091 fix link
* VAULT-6091 Fix time/string, add another reference
* VAULT-6091 add some misses for references to this format
The operations are handled identically, but ~85% of the references were
POST, and having a mix of PUT and POST was a source of questions.
A subsequent commit will update the internal use of "PUT" such as by
the API client and -output-curl-string.