Replace forward quotes with backward quotes in TFLite opaque api documentation.

PiperOrigin-RevId: 828858312

Author: ggawryal

tflite/core/c/c_api_opaque.cc

@@ -423,19 +423,19 @@ TfLiteStatus TfLiteOpaqueContextGetNodeAndRegistration(
       context, node_index, &local_node, &registration);
   if (status != kTfLiteOk) return status;
 
-  // When the 'registration' object obtained via 'GetNodeAndRegistration'
-  // has its 'registration_external' field set then we can load that into the
-  // caller's 'registration_external' pointer and return early.
+  // When the `registration` object obtained via `GetNodeAndRegistration`
+  // has its `registration_external` field set then we can load that into the
+  // caller's `registration_external` pointer and return early.
   *node = reinterpret_cast<TfLiteOpaqueNode*>(local_node);
   if (registration->registration_external) {
     *registration_external = registration->registration_external;
     return kTfLiteOk;
   }
 
-  // When the 'registration' object obtained via 'GetNodeAndRegistration'
-  // does *not* have its 'registration_external' field set then we need to
+  // When the `registration` object obtained via `GetNodeAndRegistration`
+  // does *not* have its `registration_external` field set then we need to
   // create a TfLiteOperator on the fly, and set its field according
-  // to the 'TfLiteRegistration' object.
+  // to the `TfLiteRegistration` object.
   auto derived_registration =
       tflite::internal::CommonOpaqueConversionUtil::ObtainOperator(
           context, registration, node_index);
@@ -459,12 +459,12 @@ TfLiteStatus TfLiteOpaqueContextReplaceNodeSubsetsWithDelegateKernels(
   TfLiteContext* context = reinterpret_cast<TfLiteContext*>(opaque_context);
   TfLiteDelegate* delegate = reinterpret_cast<TfLiteDelegate*>(opaque_delegate);
 
-  // Wrap the provided 'registration_external' as a regular 'TfLiteRegistration'
+  // Wrap the provided `registration_external` as a regular `TfLiteRegistration`
   // object to reduce the places in the TF Lite runtime that need to be aware
-  // of 'TfLiteOperator's.  Note that it is important to
-  // brace-initialize the 'TfLiteRegistration' so that we pass a registration to
-  // 'ReplaceNodeSubsetsWithDelegateKernels' that has all of its fields set to
-  // null, except the 'registration_external' one.
+  // of `TfLiteOperator`s.  Note that it is important to
+  // brace-initialize the `TfLiteRegistration` so that we pass a registration to
+  // `ReplaceNodeSubsetsWithDelegateKernels` that has all of its fields set to
+  // null, except the `registration_external` one.
   TfLiteRegistration registration{};
   registration.registration_external = registration_external;