User Guide Docs for Token Management typos

h5. Creating the token hash key [!https://knox.apache.org/books/knox-2-1-0/markbook-section-link.png!|https://knox.apache.org/books/knox-2-1-0/user-guide.html#Creating+the+token+hash+key]

As explained, if you would like to use Knox’s token generation features, you will have to create a gateway-level alias with a 256, 384, or 512-bit length JWK. You can do it in - at least - two different ways:
 # You generate your own MAC (using [this online tool|https://8gwifi.org/jwkfunctions.jsp] for instance) and save it as an alias using Knox CLI.
 # You do it running the following Knox CLI command:
{{generate-jwk --saveAlias knox.token.hash.key}}

The second option involves a newly created Knox CLI command called {{{}generate-jwk{}}}:
h5. Token state service implementations [!https://knox.apache.org/books/knox-2-1-0/markbook-section-link.png!|https://knox.apache.org/books/knox-2-1-0/user-guide.html#Token+state+service+implementations]