Update PCbuild/readme.txt to correct the default platform (GH-142337)

diff --git a/PCbuild/readme.txt b/PCbuild/readme.txt
index 27c0d382281bdb24810f3ba07fdcbb79850d7b04..313982ed28a5dc39de4d854699459a9287c7046b 100644 (file)
--- a/PCbuild/readme.txt
+++ b/PCbuild/readme.txt
@@ -6,7 +6,7 @@ Quick Start Guide
 1a. Optionally install Python 3.10 or later.  If not installed,
     get_externals.bat (via build.bat) will download and use Python via
     NuGet.
-2.  Run "build.bat" to build Python in 32-bit Release configuration.
+2.  Run "build.bat" to build Python in 64-bit Release configuration.
 3.  (Optional, but recommended) Run the test suite with "rt.bat -q".