[at-spi2-core: 13/19] Accessible.xml: document the GetRoleName method

[Federico Mena Quintero <federico src gnome org>]

commit 73bc33a17327d916c74c9590f8dcd305e061da6a
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Jul 5 19:22:26 2022 -0500

    Accessible.xml: document the GetRoleName method

 xml/Accessible.xml | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/xml/Accessible.xml b/xml/Accessible.xml
index 520a8ff8..7a508131 100644
--- a/xml/Accessible.xml
+++ b/xml/Accessible.xml
@@ -721,6 +721,13 @@
       <arg direction="out" type="u"/>
     </method>
 
+    <!--
+        GetRoleName:
+
+        Gets a UTF-8 string corresponding to the name of the role played by an object.
+        This method will return useful values for roles that fall outside the
+        enumeration used in the GetRole method.
+    -->
     <method name="GetRoleName">
       <arg direction="out" type="s"/>
     </method>