Advise opening a new shell on Windows

... after running the prereq setup script.

Change-Id: Ida45afbf87b70a9eaef5314b809d446a412eea4f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/sample_project/+/172436
Commit-Queue: Chad Norvell <chadnorvell@google.com>
Reviewed-by: Armando Montanez <amontanez@google.com>
GitOrigin-RevId: 546afc27db889f2c790ad87d666c46ae0be66b14
diff --git a/tools/setup_windows_prerequisites.bat b/tools/setup_windows_prerequisites.bat
index ccc17c4..cce0c5d 100644
--- a/tools/setup_windows_prerequisites.bat
+++ b/tools/setup_windows_prerequisites.bat
@@ -66,6 +66,7 @@
 SET _COLORED_TEXT_INSTALL_FAILED=Install failed!
 
 SET _COLORED_TEXT_DONE="DONE! "
+SET _COLORED_TEXT_NOTE="NOTE: "
 SET _COLORED_TEXT_ERROR="ERROR: "
 
 SET "_DEV_MODE_PATH=Settings->Update & Security->For developers->Developer Mode"
@@ -109,6 +110,8 @@
 SET "local_path=%PATH%"
 IF "%mode%"=="SETUP" (
 	echo Everything is ready to go!
+	echo.
+	echo %_COLORED_TEXT_NOTE% We advise opening a fresh shell before running bootstrap.bat!
 	endlocal & set "PATH=%local_path%"
 )