Added additional headings to facilitate more precise linking

docs/framework/setting.md

@@ -49,6 +49,8 @@ Each file consists of a php snippet which returns an array. Array keys are strin
   ),
 ```
 
+### Supported Properties
+
 The Supported Properties for settings are:
 
 | property | Usage | Example Notes |
@@ -74,6 +76,8 @@ The Supported Properties for settings are:
 | `is_domain` | Domain setting| see `civicrm_setting` table |
 | `is_contact` | Contact setting| see `civicrm_setting` table |
 
+### Deprecated Properties
+
 Deprecated settings properties are :
 
 | property | Usage | Example /Notes |