Update README.md

Author: budulinek

README.md

@@ -26,19 +26,19 @@ Screenshots of the web interface:
 * up to 247 Modbus RTU slaves
 * up to 8 TCP/UDP sockets for Modbus TCP/UDP masters and for the web interface
 * RS485 interface protocols:
-  o Modbus RTU
+  - Modbus RTU
 * Ethernet interface protocols:
-  o Modbus TCP
-  o Modbus UDP
-  o Modbus RTU over TCP
-  o Modbus RTU over UDP
+  - Modbus TCP
+  - Modbus UDP
+  - Modbus RTU over TCP
+  - Modbus RTU over UDP
 * supports broadcast (slave address 0x00) and error codes
 * supports all Modbus function codes
 * settings can be changed via web interface, stored in EEPROM
 * diagnostics and Modbus RTU scan via web interface
 * optimized queue for Modbus requests
-  o prioritization of requests to responding slaves
-  o queue will accept only one requests to non-responding slaves
+  - prioritization of requests to responding slaves
+  - queue will accept only one requests to non-responding slaves
 
 ## How can I build it myself?
 Get the hardware. Cheap clones from China are sufficient:
@@ -85,4 +85,4 @@ This project started as a simple "playground" where I learned things. However, i
 
 Not everything could fit into the limited flash memory of Arduino Nano / Uno. The DHCP client within a ethernet library consumes too much memory. The code for automatic IP address is in the sketch but disabled by default. If you want to use auto IP functionality, you have to use something bigger (such as Arduino Mega) and uncomment #define ENABLE_DHCP. After that, new "Auto IP" setting will appear in the IP settings web interface.
 
-<img src="/pics/modbus6.png" alt="06" style="zoom:100%;" />
+<img src="/pics/modbus6.png" alt="06" style="zoom:100%;" />