docs: Update template component name validation

Author: fsbraun

docs/source/tutorial/template_components.rst

@@ -10,9 +10,9 @@ Simplified Component Creation with Templates
 
 .. versionadded:: 2.1
 
-**Template components** are the easiest approach to creating or porting your own custom 
+**Template components** are the easiest approach to creating or porting your own custom
 frontend components, allowing you to define custom components **using django templates,
-without needing to write any Python code**. 
+without needing to write any Python code**.
 
 
 Example Hero Template Component
@@ -104,6 +104,11 @@ by django CMS to identify the plugin later. The ``name`` parameter is used to di
 component in the CMS admin interface. Internally the command declares a ``CMSFrontendComponent``
 class. All named arguments are added to the component's Meta class.
 
+.. note::
+    The component name (the first argument to ``{% cms_component %}``) must be a valid Python identifier.
+    This means it should start with a letter or underscore, followed by letters, digits, or underscores,
+    and cannot contain spaces or special characters like hyphens.
+
 Only one ``{% cms_component %}`` tag is allowed per template file.
 
 The first part is the declarative part of the template: