fix cpp block

Author: Krovatkin

advanced_source/cpp_export.rst

@@ -157,30 +157,30 @@ do:
 
 .. code-block:: cpp
 
-#include <torch/script.h> // One-stop header.
-
-#include <iostream>
-#include <memory>
-
-int main(int argc, const char* argv[]) {
-  if (argc != 2) {
-    std::cerr << "usage: example-app <path-to-exported-script-module>\n";
-    return -1;
-  }
-
-  // Deserialize the ScriptModule from a file using torch::jit::load().
-  torch::jit::script::Module module;
-  try {
-    module = torch::jit::load(argv[1]);
-    // Create a vector of inputs.
-  }
-  catch (const c10::Error& e) {
-    std::cerr << "error loading the model\n";
-    return -1;
-  }
-
-  std::cout << "ok\n";
-}
+    #include <torch/script.h> // One-stop header.
+
+    #include <iostream>
+    #include <memory>
+
+    int main(int argc, const char* argv[]) {
+      if (argc != 2) {
+        std::cerr << "usage: example-app <path-to-exported-script-module>\n";
+        return -1;
+      }
+
+      // Deserialize the ScriptModule from a file using torch::jit::load().
+      torch::jit::script::Module module;
+      try {
+        module = torch::jit::load(argv[1]);
+        // Create a vector of inputs.
+      }
+      catch (const c10::Error& e) {
+        std::cerr << "error loading the model\n";
+        return -1;
+      }
+
+      std::cout << "ok\n";
+    }
 
 
 The ``<torch/script.h>`` header encompasses all relevant includes from the