diff --git a/README.md b/README.md
index 0edc4e7..d446257 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,9 @@ as required.  Default is:
 
 To compile the kernel and build a filesystem image, run:
 
+    ```shell
     $ make
+    ```
 
 A resulting root filesystem image is in file `sdcard.rd`.
 A kernel is in file `unix.hex` in your target board subdirectory.
@@ -71,7 +73,9 @@ You need to put a filesystem image on a SD card.  On Windows, use
 Win32DiskImager utility (https://launchpad.net/win32-image-writer/+download).
 On Linux, run:
 
+    ```shell
     $ sudo dd if=sdcard.rd of=/dev/XYZ
+    ```
 
 Here `XYZ` is a device name of SD card, as recognized by Linux (sdb in my case).
 
@@ -82,10 +86,12 @@ Kernel image should be written to PIC32 flash memory.  The procedure depends
 on a board used.
 
 #### Max32 board:
+    ```shell
     $ cd sys/pic32/ubw32
     $ AVRTOOLS=/Applications/Mpide.app/Contents/Resources/Java/hardware/tools
         $AVRTOOLS/bin/avrdude -C$AVRTOOLS/etc/avrdude.conf -c stk500v2 -p pic32 \
         -P /dev/tty.usbserial-* -b 115200 -v -U flash:w:unix.hex:i
+    ```
 
 Here you need to change AVRTOOLS path and tty name according to your system.
 
@@ -93,7 +99,9 @@ Here you need to change AVRTOOLS path and tty name according to your system.
 Use a pic32prog utility (http://code.google.com/p/pic32prog/)
 and a USB cable to install a kernel:
 
+    ```shell
     $ pic32prog sys/pic32/ubw32/unix.hex
+    ```
 
 #### Maximite:
 Use the bootload program for Windows, available for download by link:
@@ -110,7 +118,9 @@ This should be done only once.
 Then, you can use a pic32prog utility (http://code.google.com/p/pic32prog/)
 and a USB cable to install a kernel:
 
+    ``` shell
     $ pic32prog sys/pic32/explorer16/unix.hex
+    ```
 
 #### PIC32 Starter Kit:
 Use PICkit 2 adapter and software to install a boot loader from
@@ -119,7 +129,9 @@ file `sys/pic32/starter-kit/boot.hex`.  This should be done only once.
 Then, you can use a pic32prog utility (http://code.google.com/p/pic32prog/)
 and a USB cable to install a kernel:
 
+    ```shell
     $ pic32prog sys/pic32/starter-kit/unix.hex
+    ```
 
 
 ## Simulator
@@ -128,12 +140,16 @@ You can use a MIPS32 simulator to develop a debug a RetroBSD software,
 without a need for hardware board.  By default, a simulator is configured
 to imitate a Max32 board.  To build it:
 
+    ```shell
     $ cd tools/virtualmips
     $ make
+    ```
 
 Run it:
 
+    ```shell
     $ ./pic32
+    ```
 
 Configuration of simulated board is stored in file `pic32_max32.conf`.
 
@@ -142,5 +158,7 @@ Configuration of simulated board is stored in file `pic32_max32.conf`.
 
 For building under Ubuntu you need the following packages installed:
 
+    ```shell
     $ sudo apt-get install byacc libelf-dev
+    ```