Update README.md

Author: souravbaghz

docs/en/README.md

@@ -1,4 +1,4 @@
-# CanHacker (lawicel) CAN adapter on Arduino + MCP2515
+# CanHacker (lawicel) CAN adapter on Arduino + MCP2515 (8MHz)
 
 Use that [Library](https://github.com/autowp/arduino-mcp2515) to communicate with MCP2515
 
@@ -12,10 +12,23 @@ Implement communication with CAN bus via MCP2515 by CanHacker (lawicel) protocol
 - supports filter by ID (mask + code)
 - interface using [Stream](https://www.arduino.cc/en/Reference/Stream): ability to work with Serial, SoftwareSerial, Ethernet and other
 - supported can baudrates from 10Kbps up to 1Mbps
-- supported modules with different oscillators (8, 16, 20 MHZ), 16 MHZ is default, use setClock if your oscillator is not 16MHZ
+- supported modules with different oscillators (8, 16, 20 MHZ), 8 MHZ is default, use setClock if your oscillator is not 8MHZ
 - support [CanHacker](http://www.mictronics.de/projects/usb-can-bus/) (application for Windows)
 - support [CANreader](https://github.com/autowp/CANreader) (application for Android)
 
+## Pins Connection
+
+|MCP2515 Pin|Arduino Pin|
+|-----------|-----------|
+|    VCC    |    5V     |
+|    GND    |    GND    |
+|    CS     |    D10    |
+|    SO     |    D12    |
+|    SI     |    D11    |
+|    SCK    |    D13    |
+|    INT    |    D2     |
+
+
 ## Library Installation
 
 1. Install [MCP2515 Library](https://github.com/autowp/arduino-mcp2515)