[Button groups and Date picker] Fixed a table markdown issue in the button group and date picker documentation that was causing rendering problems on GitHub

PiperOrigin-RevId: 781355255

Author: Material Design Team

docs/components/ButtonGroup.md

@@ -80,15 +80,10 @@ Element                         | Attribute                | Related method(s)
 
 ### Additional attributes of child buttons
 
-| Element        | Attribute                 | Related   | Default value      |
-:                :                           : method(s) :                    :
-| -------------- | ------------------------- | --------- | ------------------ |
-| **Title of the | `app:layout_overflowText` | N/A       | button's `text`    |
-: overflow menu  :                           :           : value, if not      :
-: item**         :                           :           : specified or empty :
-| **Icon of the  | `app:layout_overflowIcon` | N/A       | `null`             |
-: overflow menu  :                           :           :                    :
-: item**         :                           :           :                    :
+Element                             | Attribute                | Related method(s) | Default value
+----------------------------------- | -------------------------| ----------------- | -------------
+**Title of the overflow menu item** | `app:layout_overflowText`| N/A               | button's `text` value, if not specified or empty
+**Icon of the  overflow menu item** | `app:layout_overflowIcon`| N/A               | `null`
 
 ### Styles and theme attributes
 

docs/components/DatePicker.md

@@ -199,10 +199,9 @@ Element              | Attribute              | Related method(s) | Default valu
 
 ### Selected range
 
-| Element   | Attribute            | Related   | Default value               |
-:           :                      : method(s) :                             :
-| --------- | -------------------- | --------- | --------------------------- |
-| **Color** | `app:rangeFillColor` | N/A       | `?attr/colorSurfaceVariant` |
+Element   | Attribute            | Related  method(s) | Default value
+--------- | -------------------- | ------------------ | ---------------------------
+**Color** | `app:rangeFillColor` | N/A                | `?attr/colorSurfaceVariant`
 
 ### Cancel button