pyats:add new page (#8480)

pages/common/pyats.md

@@ -0,0 +1,20 @@
+# pyATS
+
+> A vendor agnostic test automation framework by Cisco Systems, used for network and systems testing.
+> More information: <https://developer.cisco.com/pyats/>.
+
+- Run a `pyATS` subcommand:
+
+`pyats {{subcommand}}`
+
+- Display version:
+
+`pyats version check`
+
+- Display help:
+
+`pyats --help`
+
+- Display help about a specific subcommand:
+
+`pyats {{subcommand}} --help`