optimize geo (#2050)

* optimize geo

* Update 10.geography.md

* Update docs-2.0/3.ngql-guide/3.data-types/10.geography.md

---------

Co-authored-by: abby.huang <78209557+abby-cyber@users.noreply.github.com>

docs-2.0/3.ngql-guide/3.data-types/10.geography.md

@@ -6,6 +6,10 @@ Geography is a data type composed of latitude and longitude that represents geos
 
 A point is the basic data type of geography, which is determined by a latitude and a longitude. For example, `"POINT(3 8)"` means that the longitude is `3°` and the latitude is `8°`. Multiple points can form a linestring or a polygon.
 
+!!! note
+
+    You cannot directly insert geographic data of the following types, such as `INSERT VERTEX any_shape(geo) VALUES "1":("POINT(1 1)")`. Instead, you need to use a [geography function](../6.functions-and-expressions/14.geo.md) to specify the data type before inserting, such as `INSERT VERTEX any_shape(geo) VALUES "1":(ST_GeogFromText("POINT(1 1)"));`.
+
 | Shape      | Example                           | Description                              |
 | :--        | :--                               | :--                                      |
 | Point      | `"POINT(3 8)"`                    | Specifies the data type as a point.      |
@@ -24,8 +28,6 @@ CREATE TAG INDEX <index_name> ON <tag_name>(<geo_prop_name>) s2_min_level = <int
 
 ## Examples
 
-For functions about the geography data type, see [Geography functions](../6.functions-and-expressions/14.geo.md).
-
 ```ngql
 //Create a Tag to allow storing any geography data type.
 nebula> CREATE TAG IF NOT EXISTS any_shape(geo geography);