Update notes for submitted changes

*     Closes-Bug: #1334357, #1350475, #1350974, #1349981     1. changed rest-api port from default to 5005     2. enabled rest-api services     3. rbd cache enable and size set is done after pg set     4. Fixed replica size for Volumes_hdd and Volumes_ssd pools     5. Fix for add_storage_node w.r.t firefly changes