Update README

test/tools/README.md

@@ -1,23 +1,28 @@
-How to generate test-data file for WPT tests?
-
-Step 1: Please prepare resources JSON file which includes those tests
-to test each operator of WebNN API without specified inputs and outputs
-data.
-
-Step 2: Implement generate test-data scripts
-
-Step 3: Execute command for generating test-data files for WPT tests
-
-```shell
-node gen-operator-with-single-input.js resources\softsign.json
-```
-
-then, you can find two generated folders named 'test-data' and
-'test-data-wpt'. There're raw test data as being
-./test-data/softsign-data.json,
-and raw WPT test-data file as being ./test-data-wpt/softsign.json.
-
-
-You can manually modify some test data in
-./test-data/softsign-data.json,
+How to generate test-data file for WPT tests?
+
+Step 1: Please prepare resources JSON file which includes those tests
+to test each operator of WebNN API without specified inputs and outputs
+data.
+
+Step 2: Implement generate test-data scripts
+
+Step 3: Execute command for generating test-data files for WPT tests.
+```shell
+node gen-operator-with-single-input.js resources\<operator>.json
+```
+
+Take an example for softsign operator tests:
+
+```shell
+node gen-operator-with-single-input.js resources\softsign.json
+```
+
+then, you can find two generated folders named 'test-data' and
+'test-data-wpt'. There're raw test data as being
+./test-data/softsign-data.json,
+and raw WPT test-data file as being ./test-data-wpt/softsign.json.
+
+
+You can manually modify some test data in
+./test-data/softsign-data.json,
 then execute Step 3, to update ./test-data-wpt/softsign.json.