Fix https://github.com/scylladb/scylladb/issues/11197 This PR adds a new page where specifying workload attributes with service levels is described and adds it to the menu. Also, I had to fix some links because of the warnings. Closes #11209 * github.com:scylladb/scylladb: doc: remove the reduntant space from index doc: update the syntax for defining service level attributes doc: rewording doc: update the links to fix the warnings doc: add the new page to the toctree doc: add the descrption of specifying workload attributes with service levels doc: add the definition of workloads to the glossary