Document 'my' field in PreferencesInfo and PreferencesInput

Change-Id: I86531f38aa4138057c53f8e699493ef47eedbc5b
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

Documentation/rest-api-accounts.txt

diff --git a/Documentation/rest-api-accounts.txt b/Documentation/rest-api-accounts.txt
index f533c95..caab598 100644
--- a/Documentation/rest-api-accounts.txt
+++ b/Documentation/rest-api-accounts.txt
@@ -1561,6 +1561,9 @@
 |`diff_view`                    ||
 The type of diff view to show.
 Allowed values are `SIDE_BY_SIDE`, `UNIFIED_DIFF`.
+|`my`                           ||
+The menu items of the `MY` top menu as a list of
+link:rest-api-config.html#top-menu-item-info[TopMenuItemInfo] entities.
 |============================================
 
 [[preferences-input]]
@@ -1604,6 +1607,9 @@
 |`diff_view`                    |optional|
 The type of diff view to show.
 Allowed values are `SIDE_BY_SIDE`, `UNIFIED_DIFF`.
+|`my`                           |optional|
+The menu items of the `MY` top menu as a list of
+link:rest-api-config.html#top-menu-item-info[TopMenuItemInfo] entities.
 |============================================
 
 [[query-limit-info]]