diff --git a/README.md b/README.md
index ad21da7..bee53d8 100644
--- a/README.md
+++ b/README.md
@@ -7,3 +7,58 @@ This repository contains the documentations for various CPUs. It contain data sh
 
 Before submitting a pull request, please read the [Contribution
 Guildelines](CONTRIBUTING.md).
+
+## Contents
+
+- [386Intel](386Intel)
+- [8085](8085)
+- [88000](https://github.com/awesome-cpus/awesome-cpus-m88k)
+- [Alpha](Alpha)
+- [ARCompact](ARCompact)
+- [ARM](ARM)
+- [AVR](AVR)
+- [AVR32](AVR32)
+- [B5000](https://github.com/awesome-cpus/b5000)
+- [CRIS](CRIS)
+- [CRISP](CRISP)
+- [DSP56000](DSP56000)
+- [ESA390](ESA390)
+- [F18A](F18A)
+- [H8](H8)
+- [HD6301](HD6301)
+- [i860](https://github.com/awesome-cpus/awesome-cpus-i860)
+- [i960](i960)
+- [IA-64](IA-64)
+- [KDF9](KDF9)
+- [M68000](M68000)
+- [MARC4](MARC4)
+- [MC6809](MC6809)
+- [MCS-48](MCS-48)
+- [MCS-51](MCS-51)
+- [MCS6500](MCS6500)
+- [MicroBlaze](MicroBlaze)
+- [MIPS](MIPS)
+- [MN103](MN103)
+- [MSP430](MSP430)
+- [NS32000](NS32000)
+- [OpenRISC](OpenRISC)
+- [PDP-1](PDP-1)
+- [PDP-10](https://github.com/awesome-cpus/awesome-cpus-pdp10)
+- [PDP-11](PDP-11)
+- [PDP-8](https://github.com/awesome-cpus/pdp8)
+- [PIC](https://github.com/awesome-cpus/awesome-cpus-pic)
+- [PowerPC](PowerPC)
+- [Propeller](Propeller)
+- [PSC1000](PSC1000)
+- [RISC-V](RISC-V)
+- [RS08](RS08)
+- [RTX2000](RTX2000)
+- [SPARC](SPARC)
+- [SuperH](SuperH)
+- [TMS320C3x](TMS320C3x)
+- [VAX](VAX)
+- [VE850](VE850)
+- [x86-64](x86-64)
+- [Xtensa](Xtensa)
+- [Z80](Z80)
+- [zArchitecture](zArchitecture)