bpo-32726: Build macOS 10.9+ installer with private copy of Tcl/Tk 8.6
diff --git a/Mac/BuildScript/resources/Welcome.rtf b/Mac/BuildScript/resources/Welcome.rtf
index 18f3290..4908fed 100644
--- a/Mac/BuildScript/resources/Welcome.rtf
+++ b/Mac/BuildScript/resources/Welcome.rtf
@@ -23,7 +23,7 @@
\
\b NEW in 3.7.0b1:
-\b0 two installer variants (10.9+ 64-bit-only, 10.6+ 64-/32-bit), Tcl/Tk 8.6 support in the 10.9+ variant, OpenSSL 1.1.0g, and more!\
+\b0 two installer variants (10.9+ 64-bit-only, 10.6+ 64-/32-bit), built-in Tcl/Tk 8.6 support in the 10.9+ variant (no additional third-party downloads!), OpenSSL 1.1.0g, and more!\
\
\b IMPORTANT: