fixup! fixup! fixup! feat(iota-data-ingestion-core): add README.md

crates/iota-data-ingestion-core/README.md

@@ -102,7 +102,7 @@ loop {
         // Graceful shutdown
         _ = &mut self.exit_receiver => break,
         // Receive from Workers the processed checkpoint sequence numbers, this means that the
-        // files are no longer and a GC can be safely performed
+        // files are no longer needed and a GC can be safely performed
         Some(gc_checkpoint_number) = self.processed_receiver.recv() => {
             self.gc_processed_files(gc_checkpoint_number).expect("Failed to clean the directory");
         }
@@ -141,9 +141,6 @@ pub trait ProgressStore: Send {
 }
 ```
 
-> [!NOTE]
-> It's crucial to note that omitting the `save` method implementation would prevent garbage collection, which can be useful for custom indexers designed to interact solely with remote sources and avoid unnecessary local data storage.
-
 Instead of directly using the custom `ProgressStore` implementation, the `IndexerExecutor` interacts with it through a wrapper:
 
 ```rust