documentation

Pull request #2122: DEV-3956 changes to description of Timeout and TrapperTimeout parameters.

Merge in WEB/documentation from feature/DEV-3956-7.2-D to release/7.2

* commit '400807535d5c259fd5e718fc88ea1512bba19d5e':
  DEV-3956 update of TrapperTimeout description in the table.
  DEV-3956 improved wording and formatting.
  DEV-3956 minor improvements for clarity.
  Added small tweaks
  DEV-3956 formatting (.md file readability), typo.
  DEV-3956 formatting (new line).
  DEV-3956 listing/updating the cases, specified by Timeout and TrapperTimeout for agents, server and proxy.
  DEV-3956 timeout parameter description improvement (for proxy and server).
  DEV-3956 timeout parameter description is updated in its dedicated section.
  DEV-3956 changes to description of Timeout and TrapperTimeout parameters.