minor spelling corrections

Signed-off-by: Dmitry Smirnov <onlyjob@member.fsf.org>

pkg/api/signup.go

@@ -102,7 +102,7 @@ func SignUpStep2(c *middleware.Context, form dtos.SignUpStep2Form) Response {
 		return ApiError(500, "Failed to query database for invites", err)
 	}
 
-	apiResponse := util.DynMap{"message": "User sign up completed succesfully", "code": "redirect-to-landing-page"}
+	apiResponse := util.DynMap{"message": "User sign up completed successfully", "code": "redirect-to-landing-page"}
 	for _, invite := range invitesQuery.Result {
 		if ok, rsp := applyUserInvite(user, invite, false); !ok {
 			return rsp