typo: fix docs typo

Signed-off-by: Alex Boten <223565+codeboten@users.noreply.github.com>

baggage/baggage.go

@@ -221,7 +221,7 @@ type Member struct {
 	hasData bool
 }
 
-// NewMemberRaw returns a new Member from the passed arguments.
+// NewMember returns a new Member from the passed arguments.
 //
 // The passed key must be compliant with W3C Baggage specification.
 // The passed value must be percent-encoded as defined in W3C Baggage specification.