Update README.md

Author: simingy

crc_errors/README.md

@@ -6,9 +6,9 @@ if an interface has CRC errors, the test case fails.
 # Running
 
 ```
-pyats run job CRC_check_job.py -html_logs -testbed_file ../default_testbed.yaml
+pyats run job CRC_check_job.py --testbed-file ../default_testbed.yaml
 ```
 
 
 # To use the Mock device
-pyats run job CRC_check_job.py -html_logs -testbed_file ../default_testbed.yaml  --replay mock
+pyats run job CRC_check_job.py --testbed-file ../default_testbed.yaml  --replay mock