* Improve span_name
Use span_name if provided. Fallback to url.path if there is no
path_params.
* Add unreleased changelog
* Update examples and module description
* Change span_name and http.url to follow OTEL spec
* Remove unused function
* Improve changelog
* Fix reading span_name from request.options
* Don't use URI.path
* address changelog
19a44fbd68
