mention --sticky-follow in set_base_url() docs
@@ -1865,8 +1865,10 @@ impl GooseUser {
/// against foo.example.com.
///
/// This functionality is used internally by Goose to follow redirects of the
- /// base_url, but it is also available to be manually invoked from a load test
- /// such as in the following example.
+ /// base_url when `--sticky-follow` is specified at run time, or
+ /// `set_default(GooseDefault::StickyFollow, true)` is enabled. It is also
+ /// available to be manually invoked from a load test such as in the following
+ /// example.
///
/// # Example
/// ```rust,no_run
