docs: update table

README.md

@@ -60,7 +60,7 @@ The table below shows which PyIceberg features are currently available.
 
 | Feature | Supported | Link | Comment |
 |---|---|---|---|
-| Adding files | ❌ | https://py.iceberg.apache.org/api/#add-files | Useful for existing partitions that users don't want to re-materialize/re-compute. |
+| Add existing files | ❌ | https://py.iceberg.apache.org/api/#add-files | Useful for existing partitions that users don't want to re-materialize/re-compute. |
 | Schema evolution | ❌ | https://py.iceberg.apache.org/api/#schema-evolution | More complicated than e.g. delta lake since updates require diffing input table with existing Iceberg table. Approach should be similar to partition evolution. |
 | Sort order | ❌ | https://shorturl.at/TycZN | These can be partitions but that's not necessary. Also, they require a transform. Easiest thing to do is to allow end-users to set this in metadata. |
 | PyIceberg commit retries | ✅ | https://github.com/apache/iceberg-python/pull/330 https://github.com/apache/iceberg-python/issues/269 | PR to add this to PyIceberg is open. Will probably be merged for an upcoming release. Added a custom retry function using Tenacity for the time being. |