Remove -t parameter

Removed -t parameter

Signed-off-by: Niall T <jammasterj89@gmail.com>

README.md

@@ -56,9 +56,8 @@ version 1.13.0 or later.
   -l FILE      optional  Log output in FILE
   -c CHECK     optional  Comma delimited list of specific check(s)
   -e CHECK     optional  Comma delimited list of specific check(s) to exclude
-  -i INCLUDE   optional  Comma delimited list of patterns within a container name to check
-  -x EXCLUDE   optional  Comma delimited list of patterns within a container name to exclude from check
-  -t TARGET    optional  Comma delimited list of images name to check
+  -i INCLUDE   optional  Comma delimited list of patterns within a container or image name to check
+  -x EXCLUDE   optional  Comma delimited list of patterns within a container or image name to exclude from check
 ```
 
 By default the Docker Bench for Security script will run all available CIS tests