message: [lldb] Mention automatic codesign setup script [NFC]
  The script is the modern way of getting the certificate, so we should mention it in
  the documentation.
  Patch idea by Davidino Italiano!
diff: @@ -14,7 +14,10 @@ build folders that contained old signed items. The darwin kernel will cache
  code signing using the executable's file system node, so you will need to
  delete the file so the kernel clears its cache.
  -If you don't have one yet you will need to:
  +Automatic setup:
  +- Run scripts/macos-setup-codesign.sh
  +
  +Manual setup steps:
  - Launch /Applications/Utilities/Keychain Access.app
  - In Keychain Access select the "login" keychain in the "Keychains"
  