Update doc

metadata-ingestion/docs/sources/s3/s3.md

@@ -75,6 +75,11 @@ Path specs config to ingest folders `orders` and `returns` as datasets:
 path_specs:
     - include: s3://test-bucket/{table}/{partition_key[0]}={partition[0]}/{partition_key[1]}={partition[1]}/*.parquet
 ```
+or with partition auto-detection:
+```
+path_specs:
+    - include: s3://test-bucket/{table}/
+```
 
 One can also use `include: s3://test-bucket/{table}/*/*/*.parquet` here however above format is preferred as it allows declaring partitions explicitly.
 
@@ -150,6 +155,7 @@ Above config has 3 path_specs and will ingest following datasets
 s3://my-bucket/foo/tests/bar.avro # single file table   
 s3://my-bucket/foo/tests/*.* # mulitple file level tables
 s3://my-bucket/foo/tests/{table}/*.avro #table without partition
+s3://my-bucket/foo/tests/{table}/ #table with partition autodetection. Partition only can be detected if it is in the format of key=value
 s3://my-bucket/foo/tests/{table}/*/*.avro #table where partitions are not specified
 s3://my-bucket/foo/tests/{table}/*.* # table where no partitions as well as data type specified
 s3://my-bucket/{dept}/tests/{table}/*.avro # specifying keywords to be used in display name