Include giitpod environment configuration

sig/client.java

@@ -7,7 +7,7 @@ import sig.requests.GETRequest;
 public class client {
     public static void main(String[] args) {
         try {
-            GETRequest res = new GETRequest("https://postman-echo.com/get");
+            GETRequest res = new GETRequest("https://postman-echo.com/get?foo1=bar1&foo2=bar2");
             System.out.println(((HttpResponse<String>)res.run()).body());
         } catch (FailedResponseException e) {
             e.printStackTrace();