update docs

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>

en/device-dev/driver/driver-hdf-manage.md

@@ -170,7 +170,7 @@ You can reference the content of a node to modify the content of another node. T
  node :& source_node
 ```
 
-In this statement, the content of **node** is referenced to modify the content of **source_node**. 
+  In this statement, the content of **node** is referenced to modify the content of **source_node**. 
 
 Example:
 
@@ -328,7 +328,7 @@ node2 {
 }
 ```
 
-Or
+or
 
 
 ```
@@ -345,7 +345,7 @@ node2 {
 
 The template is used to generate nodes with consistent syntax, thereby facilitating the traverse and management of nodes of the same type.
 
-If a node is defined using the keyword **template**, its child nodes inherit from the node configuration through the double colon operator (::). The child nodes can modify but cannot add or delete attributes in **template**. The attributes not defined in the child nodes will use the attributes defined in **template** as the default values. 
+If a node is defined using the keyword **template**, its child nodes inherit from the node configuration through the double colon operator (::). The child nodes can modify or add but cannot delete attributes in **template**. The attributes not defined in the child nodes will use the attributes defined in **template** as the default values.
 
 Example: