Copy edit EthInterface.md

Make minor copy edits.

Author: Amanda Butler

docs/reference/api/connectivity/networksocket/EthInterface.md

@@ -9,13 +9,13 @@ Ethernet driver for the target and select correct network stack.
 
 ### Usage
 
-For statically initializing the driver, just create an object without passing any parameters
+To statically initialize the driver, create an object without passing any parameters:
 
 ```cpp
 EthernetInterface eth;
 ```
 
-Then, if default configuration is enough, bringing the interface up:
+Then, if the default configuration is enough, bring up the interface:
 
 ```cpp
 nsapi_error_t status = eth.connect();
@@ -33,22 +33,19 @@ UDPSocket socket;
 socket.open(&eth);
 ```
 
-
 ### Configuration
 
-For EthernetInterface, there is two possible configurations
+For EthernetInterface, there are two possible configurations:
 
-1. Use DHCP for network addressing. This is the default.
-2. Use statically configured IP addresses.
+- Use DHCP for network addressing. This is the default.
+- Use statically configured IP addresses.
 
 Refer to the API below for how to set the IP addresses by calling the `set_network()` function.
 
-
 ### EthInterface class reference
 
 [![View code](https://www.mbed.com/embed/?type=library)](http://os-doc-builder.test.mbed.com/docs/development/mbed-os-api-doxy/class_eth_interface.html)
 
-
 ### EthInterface examples
 
 Here is an example of an HTTP client program. The program brings up Ethernet as the underlying network interface and uses it to perform an HTTP transaction over a TCPSocket: