[#5098] improvement(doc): add note for Doris type mapping (#5749)

### What changes were proposed in this pull request?

add note for Doris type mapping

### Why are the changes needed?

Doris does support nested type in JDBC

Fix: #5098 

### Does this PR introduce _any_ user-facing change?

no

### How was this patch tested?

no

Author: mchades

.github/workflows/build.yml

@@ -40,9 +40,9 @@ jobs:
               - '**/*.rs'
               - '**/resources/**'
               - '**/src/**'
-              - '!**.md'
-              - '!**.png'
-              - '!**.svg'
+              - '!**/*.md'
+              - '!**/*.png'
+              - '!**/*.svg'
             spark_connector_changes:
               - spark-connector/**
     outputs:

docs/jdbc-doris-catalog.md

@@ -102,10 +102,14 @@ Please refer to
 | `FixedChar`    | `Char`     |
 | `String`       | `String`   |
 
-Doris doesn't support Gravitino `Fixed` `Struct` `List` `Map` `Timestamp_tz` `IntervalDay` `IntervalYear` `Union` `UUID` type.
-The data types other than those listed above are mapped to Gravitino's
-**[Unparsed Type](./manage-relational-metadata-using-gravitino.md#unparsed-type)** that
-represents an unresolvable data type since 0.5.0.
+
+Doris doesn't support Gravitino `Fixed` `Timestamp_tz` `IntervalDay` `IntervalYear` `Union` `UUID` type.
+The data types other than those listed above are mapped to Gravitino's **[Unparsed Type](./manage-relational-metadata-using-gravitino.md#unparsed-type)** that represents an unresolvable data type since 0.5.0.
+
+:::note
+Gravitino can not load Doris `array`, `map` and `struct` type correctly, because Doris doesn't support these types in JDBC.
+:::
+
 
 ### Table column auto-increment