diff --git a/README.md b/README.md
index ff1753f..27f4d68 100644
--- a/README.md
+++ b/README.md
@@ -3,36 +3,42 @@ Can bus monitoring tool based on arduino and can bus shield. Implements CAN ASCI
 
 See protocol definition here http://www.can232.com/docs/can232_v3.pdf and here http://www.can232.com/docs/canusb_manual.pdf
 
-Commands not supported/not implemented:  s, W, M, m, U
+Commands not supported/not implemented:  
+- s, W, M, m, U.
+
 Commands modified:
-  S - supports not declared 83.3 rate, refer to https://github.com/latonita/CAN_BUS_Shield fork 
-  F - returns MCP2515 error flags
-  Z - extra Z2 option enables 4 byte timestamp vs standard 2 byte (60000ms max)
+-  S - supports not declared 83.3 rate, refer to https://github.com/latonita/CAN_BUS_Shield fork 
+-  F - returns MCP2515 error flags
+-  Z - extra Z2 option enables 4 byte timestamp vs standard 2 byte (60000ms max)
   
-  
-'S' //   YES+      Sn[CR]               Setup with standard CAN bit-rates where n is 0-8.
-    //                                  S0 10Kbit          S4 125Kbit         S8 1Mbit
-    //                                  S1 20Kbit          S5 250Kbit         S9 83.3Kbit
-    //                                  S2 50Kbit          S6 500Kbit
-    //                                  S3 100Kbit         S7 800Kbit
-'s' //    -        sxxyy[CR]            Setup with BTR0/BTR1 CAN bit-rates where xx and yy is a hex value.
-'O' //   YES       O[CR]                Open the CAN channel in normal mode (sending & receiving).
-'L' //   YES       L[CR]                Open the CAN channel in listen only mode (receiving).
-'C' //   YES       C[CR]                Close the CAN channel.
-'t' //   YES       tiiildd...[CR]       Transmit a standard (11bit) CAN frame.
-'T' //   YES       Tiiiiiiiildd...[CR]  Transmit an extended (29bit) CAN frame
-'r' //   YES       riiil[CR]            Transmit an standard RTR (11bit) CAN frame.
-'R' //   YES       Riiiiiiiil[CR]       Transmit an extended RTR (29bit) CAN frame.
-'P' //   YES       P[CR]                Poll incomming FIFO for CAN frames (single poll)
-'A' //   YES       A[CR]                Polls incomming FIFO for CAN frames (all pending frames)
-'F' //   YES+      F[CR]                Read Status Flags.
-'X' //   YES       Xn[CR]               Sets Auto Poll/Send ON/OFF for received frames.
-'W' //    -        Wn[CR]               Filter mode setting. By default CAN232 works in dual filter mode (0) and is backwards compatible with previous CAN232 versions.
-'M' //    -        Mxxxxxxxx[CR]        Sets Acceptance Code Register (ACn Register of SJA1000). // we use MCP2515, not supported
-'m' //    -        mxxxxxxxx[CR]        Sets Acceptance Mask Register (AMn Register of SJA1000). // we use MCP2515, not supported
-'U' //   YES       Un[CR]               Setup UART with a new baud rate where n is 0-6.
-'V' //   YES       v[CR]                Get Version number of both CAN232 hardware and software
-'v' //   YES       V[CR]                Get Version number of both CAN232 hardware and software
-'N' //   YES       N[CR]                Get Serial number of the CAN232.
-'Z' //   YES+      Zn[CR]               Sets Time Stamp ON/OFF for received frames only. EXTENSION to LAWICEL: Z2 - millis() timestamp w/o standard 60000ms cycle
-'Q' //   YES  todo     Qn[CR]               Auto Startup feature (from power on). 
+```
+CMD | IMPLEMENTED | SYNTAX               | DESCRIPTION
+------------------------------------------------------------------------------------------------------------
+'S' |   YES+      |   Sn[CR]               Setup with standard CAN bit-rates where n is 0-8.
+    |             |                        S0 10Kbit          S4 125Kbit         S8 1Mbit
+    |             |                        S1 20Kbit          S5 250Kbit         S9 83.3Kbit
+    |             |                        S2 50Kbit          S6 500Kbit
+    |             |                        S3 100Kbit         S7 800Kbit
+'s' |    -        |   sxxyy[CR]            Setup with BTR0/BTR1 CAN bit-rates where xx and yy is a hex value.
+'O' |   YES       |   O[CR]                Open the CAN channel in normal mode (sending & receiving).
+'L' |   YES       |   L[CR]                Open the CAN channel in listen only mode (receiving).
+'C' |   YES       |   C[CR]                Close the CAN channel.
+'t' |   YES       |   tiiildd...[CR]       Transmit a standard (11bit) CAN frame.
+'T' |   YES       |   Tiiiiiiiildd...[CR]  Transmit an extended (29bit) CAN frame
+'r' |   YES       |   riiil[CR]            Transmit an standard RTR (11bit) CAN frame.
+'R' |   YES       |   Riiiiiiiil[CR]       Transmit an extended RTR (29bit) CAN frame.
+'P' |   YES       |   P[CR]                Poll incomming FIFO for CAN frames (single poll)
+'A' |   YES       |   A[CR]                Polls incomming FIFO for CAN frames (all pending frames)
+'F' |   YES+      |   F[CR]                Read Status Flags.
+'X' |   YES       |   Xn[CR]               Sets Auto Poll/Send ON/OFF for received frames.
+'W' |    -        |   Wn[CR]               Filter mode setting. By default CAN232 works in dual filter mode (0) and is backwards compatible with previous CAN232 versions.
+'M' |    -        |   Mxxxxxxxx[CR]        Sets Acceptance Code Register (ACn Register of SJA1000). // we use MCP2515, not supported
+'m' |    -        |   mxxxxxxxx[CR]        Sets Acceptance Mask Register (AMn Register of SJA1000). // we use MCP2515, not supported
+'U' |   YES       |   Un[CR]               Setup UART with a new baud rate where n is 0-6.
+'V' |   YES       |   v[CR]                Get Version number of both CAN232 hardware and software
+'v' |   YES       |   V[CR]                Get Version number of both CAN232 hardware and software
+'N' |   YES       |   N[CR]                Get Serial number of the CAN232.
+'Z' |   YES+      |   Zn[CR]               Sets Time Stamp ON/OFF for received frames only. EXTENSION to LAWICEL: Z2 - millis() timestamp w/o standard 60000ms cycle
+'Q' |   YES  todo |       Qn[CR]               Auto Startup feature (from power on). 
+
+```