Sync 1.23 release notes for bug 64289 from REL1_23

Change Ib97f47ef1 was merged after the branch cut, but did not
have release notes. Then whoever backported it to REL1_23 decided
it really should have release notes and wrote them directly in
REL1_23...

Change-Id: I5d36dc86f10e757cac286bcb9b63c9e711a921b9
Sync 1.23 release notes for bug 13250 from REL1_23

Change I17dde71858fa655 was merged after the branch cut, and did
not have release notes. Then whoever backported it to REL1_23 decided
it really should have release notes and wrote them directly in
REL1_23...

Change-Id: Iceeb6c039059e11c1854e32ee086ec9f53f29a03
Move release notes for "Move redirect rendering into WikitextContent" to 1.24

Follows-up Id44d566a7ca3, the commit was merged before the
branch cut and then reverted in REL_23 (I7431eb83a092).
The notes were never fixed in master.

Change-Id: I9ef5263ac8f7b8050bb1c6e7933cde6020389c90