Fix README.md with markdownlint

dash-pipeline/utils/README.md

@@ -1,33 +1,30 @@
 # DASH pipeline utils
+
 ## Overview
+
 This package includes utils to configure DASH pipeline (bmv2) via p4runtime
 directly. It is a supplementary of DASH SAI, which is not doable/proper to do
 bmv2 specific configurations.
 
 ## Usage
-1. internal configuration of bmv2 pipeline
-```
-    dut_mac = get_mac("veth0")
-    neighbor_mac = get_mac("veth1")
-    P4InternalConfigTable().set(neighbor_mac = mac_in_bytes(neighbor_mac), mac = mac_in_bytes(dut_mac))
-```
-2. underlay routing
+
+### internal configuration of bmv2 pipeline
+
+```python
+    neighbor_mac = "xx:xx:xx:xx:xx:xx"
+    dut_mac = "xx:xx:xx:xx:xx:xx"
+    internal_config = P4InternalConfigTable(target = "localhost:9559")
+    internal_config.set(neighbor_mac = neighbor_mac, mac = dut_mac)
+    internal_config.set(flow_enabled = 1)
+    internal_config.get()
+    internal_config.unset()
 ```
-    underlay_routing = P4UnderlayRoutingTable()
+
+### underlay routing
+
+```python
+    underlay_routing = P4UnderlayRoutingTable(target = "localhost:9559")
     underlay_routing.set(ip_prefix = '::10.0.1.0', ip_prefix_len = 120, next_hop_id = 1)
     underlay_routing.get(ip_prefix = '::10.0.1.0', ip_prefix_len = 120))
     underlay_routing.unset(ip_prefix = '::10.0.1.0', ip_prefix_len = 120))
 ```
-3. flow
-```
-# decorator use_flow can be used to enable flow lookup of bmv2 pipeline for unittest class
-@use_flow
-class Test:
-    def setUp(self):
-
-# Verify flow entry is existing and customer packet can hit this flow
-verify_flow(eni_mac, vnet_id, customer_packet)
-
-# Verify flow entry is not existing and customer packet cannot hit this flow
-verify_no_flow(eni_mac, vnet_id, customer_packet)
-```