Update deploy.md (#223)

* Update deploy.md

Add an example in c++.

* Update deploy.md

Add an example in c++.

* Update deploy.md

Add an example in c++.

* Update deploy.md

Add an example in c++.

* Update deploy.md

Update dlpack device and type enumerations.

nnvm/docs/how_to/deploy.md

@@ -67,15 +67,15 @@ int main()
     params_arr.data = params_data.c_str();
     params_arr.size = params_data.length();
 
-    // get global function module for graph runtime
-    tvm::runtime::Module mod = (*tvm::runtime::Registry::Get("tvm.graph_runtime.create"))(json_data, mod_dylib, 1, 0);
-
-    int dtype_code = kFloat;
+    int dtype_code = kDLFloat;
     int dtype_bits = 32;
     int dtype_lanes = 1;
-    int device_type = kCPU;
+    int device_type = kDLCPU;
     int device_id = 0;
 
+    // get global function module for graph runtime
+    tvm::runtime::Module mod = (*tvm::runtime::Registry::Get("tvm.graph_runtime.create"))(json_data, mod_syslib, device_type, device_id);
+
     DLTensor* x;
     int in_ndim = 4;
     int64_t in_shape[4] = {1, 3, 224, 224};