Really add downloads page link to OS X installer README screens.

Mac/BuildScript/resources/ReadMe.txt

@@ -6,6 +6,12 @@ Update your version of Tcl/Tk to use IDLE or other Tk applications
 
 To use IDLE or other programs that use the Tkinter graphical user interface toolkit, you need to install a newer third-party version of the Tcl/Tk frameworks.  Visit https://www.python.org/download/mac/tcltk/ for current information about supported and recommended versions of Tcl/Tk for this version of Python and of Mac OS X.
 
+=============================
+New Installation Options and Defaults
+=============================
+
+For other changes in this release, see the Release Notes link for this release at https://www.python.org/downloads/.
+
 =============================
 Python 3 and Python 2 Co-existence
 =============================

Mac/BuildScript/resources/readme.rtf

-{\rtf1\ansi\ansicpg1252\cocoartf1343\cocoasubrtf140
+{\rtf1\ansi\ansicpg1252\cocoartf1343\cocoasubrtf160
 {\fonttbl\f0\fswiss\fcharset0 Helvetica;\f1\fmodern\fcharset0 CourierNewPSMT;}
 {\colortbl;\red255\green255\blue255;}
 \margl1440\margr1440\vieww13020\viewh15160\viewkind0
@@ -16,6 +16,14 @@ To use IDLE or other programs that use the Tkinter graphical user interface tool
 \i Tcl/Tk
 \i0  for this version of Python and of Mac OS X.\
 
+\b \ul \
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural
+\cf0 \ulc0 New Installation Options and Defaults\
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural
+\cf0 \ulc0 \
+
+\b0 \ulnone For other changes in this release, see the Release Notes link for this release at {\field{\*\fldinst{HYPERLINK "https://www.python.org/downloads/"}}{\fldrslt https://www.python.org/downloads/}}.\
+
 \b \ul \
 \pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural
 \cf0 \ulc0 Python 3 and Python 2 Co-existence\