reference/cv2: sections now somehow require one accessory

Signed-off-by: Luca Zeuch <[email protected]>

Author: l-zeuch

content/docs/reference/components-v2.md

@@ -42,18 +42,18 @@ Displays plain text content, supporting markdown. Can be a string or a slice of
 
 ### Section
 
-A layout block that shows text with one optional accessory: a button **or** a thumbnail.
+A layout block that shows text with one mandatory accessory: either a button a thumbnail.
 
 `text`: A string, or slice of strings.
 
-`button`: [Button](/docs/reference/templates/functions#cbutton) (optional)
+`button`: [Button](/docs/reference/templates/functions#cbutton)
 
-`thumbnail`: sdict with keys media, description, spoiler (optional)
+`thumbnail`: sdict with keys media, description, spoiler
 
 ###### Example
 
 For brevity, this example shows both a button and a thumbnail within a single section, but only one of those accessories
-can be used per section.
+must be used per section.
 
 ```yag
 {{ $section := componentBuilder

content/docs/reference/templates/functions.md

@@ -799,7 +799,7 @@ Returns a complex message object with the given components.
 All keys are optional, but the Discord API will reject completey empty messages, so some content is required.
 
 - `text`: A string or a slice of strings.
-- `section`: A layout block that shows text with one optional accessory: a button **or** a thumbnail with the following keys:
+- `section`: A layout block that shows text with one mandatory accessory: either a button or a thumbnail with the following keys:
   - `text`: A string or a slice of strings.
   - `button`: A [button object](#cbutton).
   - `thumbnail`: An sdict with the following keys: