docs: add hyphen attribute name in language tour documents

docs/reference/lang/tour.md

@@ -604,7 +604,7 @@ data = {
 }  # {"key1": "value1", "key2": "value2"}
 ```
 
-We can ignore the key quotation marks when we writing simple literals on the key.
+We can ignore the attribute quotation marks when we writing simple literals on the key.
 
 ```python
 data = {
@@ -613,6 +613,15 @@ data = {
 }  # {"key1": "value1", "key2": "value2"}
 ```
 
+Note that when there is `-`, `.` and other hyphens in the attribute, we must use quotation marks.
+
+```python
+data = {
+    "config.dot.attr" = "value1"  # Note we use `"config.dot.attr"` instead of `config.dot.attr` here.
+    "config-hyphen-attr" = "value2"  # Note we use `"config-hyphen-attr"` instead of `config-hyphen-attr` here.
+}
+```
+
 In addition, the **config selector expressions** can be used to init a dict instance with nested keys.
 
 ```python

i18n/zh-CN/docusaurus-plugin-content-docs/current/reference/lang/tour.md

@@ -611,6 +611,15 @@ data = {
 }  # {"key1": "value1", "key2": "value2"}
 ```
 
+请注意，当属性中存在 `-` 和 `.` 等其他连字符时，我们必须使用引号。
+
+```python
+data = {
+    "config.dot.attr" = "value1"  # Note we use `"config.dot.attr"` instead of `config.dot.attr` here.
+    "config-hyphen-attr" = "value2"  # Note we use `"config-hyphen-attr"` instead of `config-hyphen-attr` here.
+}
+```
+
 此外，**选择表达式**可以用于定义包含嵌套键 dict 实例。
 
 ```python