Documentation update for tools/psa

Signed-off-by: Vikas Katariya <[email protected]>

Author: jainvikas8

tools/psa/README.md

@@ -57,7 +57,8 @@ optional arguments:
 * When `MCU ` is not specified, the script compiles all the images for all the targets.
 * When `-t/--tc` is not specified, the script compiles with the default_toolchain speciified in targets.json.
 * When `-d/--debug` is not specified, the script compiles the images using the release profile.
-* When `--commit` is not specified, the script will not commit the images to git.
+* When `--commit` is not specified, the script will not commit the images to git and
+  any auto-generated PSA related components and services.
 * A user can specify additional commands that will be passed on to the build commands (Ex. -D for compilation defines).
 
 This script should be run in following scenarios: