diff --git a/Readme.md b/Readme.md
index 1d89d3c..1b8c973 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,22 +1,25 @@
-== Instruction ==
+# Instruction
 
 Build with
- nasm -f bin mbr.asm -o mbr
+ `nasm -f bin mbr.asm -o mbr`
 
 Run with
- qemu-system-x86_64 -boot a -fda  mbr
+ `qemu-system-x86_64 -boot a -fda  mbr`
 
 Debug with
- qemu-system-x86_64 -boot a -fda  mbr -s -S
- gdb
+ `qemu-system-x86_64 -boot a -fda  mbr -s -S`
+ then
+ `gdb`
+ ```
   target remote localhost:1234
   layout asm
   b *0x7c00
   c
+  ```
 
-== ASM reg ==
+# ASM reg
 
-=== In 16 bits ===
+## In 16 bits
 There is 4 main 16bits reg: AX, BX, CX, DX.
 You can access the 8 MSB from AX with AH and the 8 LSB with AL.( BH,BL, CH, CL)
 
@@ -26,32 +29,33 @@ SP is stack pointer, BP is base pointer
 
 AX(AH, AL), BX(BH, BL), CX(CH, CL), DX(DH, DL), SI, DI, SP, BP
 
-=== In 32bits ===
+## In 32bits
 Main register are "Extended" to 32bits but 16bits of 8bits direct access is not possible anymore.
 
 EAX, EBX, ECX, EDX, ESI, EDI, ESP, EBP
 
-=== In 64bits ===
+## In 64bits
 Prefixed by R
 RAX, RBX, RCX, RDX, RSI, RDI, RSP, RBP
 
 
-== Bios Memory ==
-
-0x0     -   0x03FF      ;IVT
-0x400   -   0x4FF       ;BIOS Data
-0x500   -   0x7BFF      ;Unused
-0x7C00  -   0x7D77      ;Bootloader
-0x7E00  -   0x9FFFF     ;Unused
-0xA0000 -   0xBFFFF     ;Video memory
-0xB0000 -   0xB7777     ;Video memory monochrome
-0xB8000 -   0xBFFFF     ;Video memory color
-0xC0000 -   0xC7FFF     ;BIOS ROM
-0x80000 -   0xEFFFF     ;BIOS shadow memory
-0xF0000 -   0xFFFFF     ;BIOS System
+# Bios Memory
+Address range            | Description
+----------------------- | -----------------------
+0x0     -   0x03FF      |IVT
+0x400   -   0x4FF       |BIOS Data
+0x500   -   0x7BFF      |Unused
+0x7C00  -   0x7D77      |Bootloader
+0x7E00  -   0x9FFFF     |Unused
+0xA0000 -   0xBFFFF     |Video memory
+0xB0000 -   0xB7777     |Video memory monochrome
+0xB8000 -   0xBFFFF     |Video memory color
+0xC0000 -   0xC7FFF     |BIOS ROM
+0x80000 -   0xEFFFF     |BIOS shadow memory
+0xF0000 -   0xFFFFF     |BIOS System
 
 
-== Interrupt Vector Table ==
+# Interrupt Vector Table
 INT_NUM     |   Short Description PM
 ----------- | ----------------------
 0x00        |  Division by zero
@@ -74,8 +78,8 @@ INT_NUM     |   Short Description PM
 0x11        |  Alignment Check
 0x12        |  Machine Check
 0x13        |  SIMD Floating-Point Exception
-0x14        |  Virtualization Exception
+0x14        |  Virtualisation Exception
 0x15        |  Control Protection Exception
 
-== BIOS IRQ ==
+# BIOS IRQ
 https://en.wikipedia.org/wiki/BIOS_interrupt_call