add suite file in demo/sample

demo/sample/suite.cs

+1
+2
\ No newline at end of file

demo/unit/2_testng.sh

+#!/usr/bin/env bash
+
+:<<!
+
+title=check string matches pattern
+cid=0
+pid=0
+
+1. exactly match            >> hello
+2. regular expression match >> `1[0-9]{10}`
+3. format string match      >> `%s%d`
+
+!
+
+str="abc123"
+
+echo "hello"
+echo "13905120512"
+echo "abc123"