Fix format doc

Author: dgarros

docs/docs/python-sdk/topics/object_file.mdx

@@ -83,7 +83,6 @@ spec:
             address: "192.168.1.1"
 ```
 
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 ### Relationship of cardinality Many
 
 A relationship of cardinality many can reference existing nodes via their HFID or define nested objects
@@ -112,14 +111,13 @@ spec:
         - [Breeder]       # Existing Node referenced by its HFID in list format
 ```
 
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 #### Nested Objects
 
 When defining nested objects, the node will be automatically created if it doesn't exist and if their relationship between the parent object and the nested object it will be automatically inserted.
 For example, in the example below, the `owner` of a `TestingDog` doesn't need to be specify because it will be automatically inserted.
 
 For 2 different syntaxes are supported:
+
 - A dictionnary with multiple value under data
 - A list of objects
 
@@ -180,4 +178,3 @@ spec:
 ### Support for Metadata
 
 Please stay tuned, the Object file does not support metadata yet, neither on attribute or relationship.
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