resolved comments

Signed-off-by: Xiaoxuan Wang <wangxiaoxuan119@gmail.com>

content/oci/oci.go

@@ -54,9 +54,10 @@ type Store struct {
 	AutoSaveIndex bool
 
 	// AutoGC controls if the OCI store will automatically clean newly produced
-	// dangling nodes during Delete() operation.
-	//   - If AutoGC is set to false, it's the user's responsibility to manually
-	//     delete the dangling nodes.
+	// dangling nodes during Delete() operation. Dangling nodes are those without
+	// any predecessors, such as blobs whose manifests have been deleted.
+	//   - If AutoGC is set to false, then new dangling nodes are not automatically
+	// cleaned up during Delete().
 	//   - Default value: true.
 	AutoGC bool
 
@@ -157,7 +158,7 @@ func (s *Store) Delete(ctx context.Context, target ocispec.Descriptor) error {
 	s.sync.Lock()
 	defer s.sync.Unlock()
 
-	// delete one node
+	// delete the node itself
 	danglings, err := s.delete(ctx, target)
 	if err != nil {
 		return err

internal/graph/memory.go

@@ -40,7 +40,7 @@ type Memory struct {
 	//  1. a node exists in Memory.predecessors if it has at least one predecessor
 	//    in the memory, regardless of whether or not the node itself exists in
 	//    the memory.
-	//  2. a node does not exist in Memory.nodes, if it doesn't have any predecessors
+	//  2. a node does not exist in Memory.predecessors, if it doesn't have any predecessors
 	//    in the memory.
 	// - Memory.successors:
 	//  1. a node exists in Memory.successors if and only if it exists in the memory.