[docs] Update acknowledgements for v15
(cherry picked from commit 40c0867f6319f57ebc2b810aa8caac328db14b66)
P
Paul O’Shannessy committed
3abc1f4a886ac40c617dd1e30dbc807e4eae73a4
Parent: 4537860
(cherry picked from commit 40c0867f6319f57ebc2b810aa8caac328db14b66)