config generated

src/config/docs.md

@@ -110,7 +110,7 @@ This page is automatically generated by `./risedev generate-example-config`
 | max_preload_wait_time_mill |  | 0 |
 | max_sub_compaction |  Max sub compaction task numbers | 4 |
 | max_version_pinning_duration_sec |  | 10800 |
-| mem_table_spill_threshold |  The spill threshold for mem table. | 0 |
+| mem_table_spill_threshold |  The spill threshold for mem table. | 4194304 |
 | meta_cache_capacity_mb |  Capacity of sstable meta cache. |  |
 | meta_file_cache |  |  |
 | min_sst_size_for_streaming_upload |  Whether to enable streaming upload for sstable. | 33554432 |