fix: format usage function output

mc

@@ -84,7 +84,9 @@ function usage() {
     printf "Positional arguments will fill the JSON objects with values from left to right.\n\n"
     printf "COMMANDS:\n"
     for command in "${!commands[@]}"; do
-        echo -e "\t ${command} $(rest $(rest ${commands[${command}]}))" | sed 's/[":]//g' |sed 's/%s//g'| sed 's/[,]/ /g'
+        local endpoint method body
+        read -r endpoint method body <<<"${commands[${command}]}"
+        echo -e "\t ${command} ${body}" | sed 's/[":\{\}]//g' |sed 's/%s//g'| sed 's/[,]/ /g'
     done
     printf "\n"
 }