diff --git a/doc/src/sgml/storage.sgml b/doc/src/sgml/storage.sgml
new file mode 100644
index 6cc0e9c..09b3f10
*** a/doc/src/sgml/storage.sgml
--- b/doc/src/sgml/storage.sgml
*************** data. Empty in ordinary tables.</entry>
*** 672,681 ****
     to this page</entry>
    </row>
    <row>
!    <entry>pd_tli</entry>
     <entry>uint16</entry>
     <entry>2 bytes</entry>
!    <entry>TimeLineID of last change (only its lowest 16 bits)</entry>
    </row>
    <row>
     <entry>pd_flags</entry>
--- 672,681 ----
     to this page</entry>
    </row>
    <row>
!    <entry>pd_checksum</entry>
     <entry>uint16</entry>
     <entry>2 bytes</entry>
!    <entry>Page checksum</entry>
    </row>
    <row>
     <entry>pd_flags</entry>