jsonrpcs: enable http transport in example

(cherry picked from commit 7d2e1c83861214489b786bb31b03991588733937)

src/modules/jsonrpcs/doc/jsonrpcs_admin.xml

@@ -423,13 +423,13 @@ children=2
 
 tcp_accept_no_cl=yes
 
-mpath="modules/"
-
 loadmodule "sl.so"
 loadmodule "pv.so"
 loadmodule "xhttp.so"
 loadmodule "jsonrpcs.so"
 
+modparam("jsonrpcs", "transport", 1)
+
 request_route {
 	send_reply("404", "not found");
 	exit;