[Python-checkins] gh-91795: Update build optimization part of PCbuild/readme.txt (GH-91849)

[zooba]

https://github.com/python/cpython/commit/906b73be5eada1995bd667a02c59f7a11998310f
commit: 906b73be5eada1995bd667a02c59f7a11998310f
branch: main
author: Fatih <77548106+fatihkabakk at users.noreply.github.com>
committer: zooba <steve.dower at microsoft.com>
date: 2023-08-08T13:47:15+01:00
summary:

gh-91795: Update build optimization part of PCbuild/readme.txt (GH-91849)

files:
M PCbuild/readme.txt

diff --git a/PCbuild/readme.txt b/PCbuild/readme.txt
index 86ad3ab1a40d9..1d3b45b7912a3 100644
--- a/PCbuild/readme.txt
+++ b/PCbuild/readme.txt
@@ -251,9 +251,11 @@ against a profiling library and contain extra debug information. The
 PGUpdate configuration takes the profiling data and generates optimized
 binaries.
 
-The build_pgo.bat script automates the creation of optimized binaries.
-It creates the PGI files, runs the unit test suite or PyBench with the
-PGI python, and finally creates the optimized files.
+The build.bat script has an argument `--pgo` that automate the creation
+of optimized binaries.
+It creates the PGI files, runs the unit test suite with the PGI python,
+and finally creates the optimized files.
+You can customize the job for profiling with `--pgo-job <job>` option.
 
 See
     https://docs.microsoft.com/en-us/cpp/build/profile-guided-optimizations