Updated README

Author: sea5kg

README.md

@@ -7,4 +7,47 @@ C++ Implementation for JsonRPC 2.0
 ## Features
 
 * Collect all handlers for jsonrpc20
-* Including system of define validators
+* Including system of define validators
+* 
+
+
+## Example 
+
+``` cpp
+
+// method: order_remove or remove_order
+
+MethodJsonRpc20_OrderRemove::MethodJsonRpc20_OrderRemove()
+    : WsjcppJsonRpc20Base({"order_remove", "remove_order"}, "Remove order by id") {
+    
+    // restriction for different roles
+    setAccessUnauthorized(false); // this define "false" says that UserSession will be not nullptr
+    setAccessUser(true);
+    setAccessAdmin(true);
+
+    // just information for documentation
+    setActivatedFromVersion("0.2.32");
+
+    // validation and description input fields
+    requireIntegerParam("id", "Id of user");
+}
+
+void MethodJsonRpc20_OrderRemove::handle(ModelRequest *pRequest) {
+    WsjcppUserSession *pUserSession = pRequest->getUserSession();
+    
+    int nId = pRequest->getInputInteger("id", -1);
+
+    // find id in database if not then return NOT_FOUND
+
+    if (nId == -1) {
+        pRequest->fail(404, "NOT_FOUND");
+        return;
+    }
+
+    // do remove order here
+
+    nlohmann::json jsonResponse;
+    pRequest->done(jsonResponse);
+}
+
+```