workspace/didConfigurationChange notification in README

[dk949]

The README mentions a served/didConfigurationChange notification as an alternative to "workspace/didConfigurationChange"

LSP specifies a workspace/didChangeConfiguration notification, but not (AFAIK) a workspace/didConfigurationChange (notice the order of "Configuration" and "Change")

my question is:

A) is there a typo in the README or is there actually a workspace/didConfigurationChange notification?
B) if the former, what is the correct order of the serve-d specific notification?

Thanks in advance!