add gds pic
diff --git a/README.md b/README.md
index 3706438..7aee96d 100644
--- a/README.md
+++ b/README.md
@@ -2,10 +2,14 @@
[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) [![UPRJ_CI](https://github.com/efabless/caravel_project_example/actions/workflows/user_project_ci.yml/badge.svg)](https://github.com/efabless/caravel_project_example/actions/workflows/user_project_ci.yml) [![Caravel Build](https://github.com/efabless/caravel_project_example/actions/workflows/caravel_build.yml/badge.svg)](https://github.com/efabless/caravel_project_example/actions/workflows/caravel_build.yml)
-| :exclamation: Important Note |
-|-----------------------------------------|
+Demonstration of the Fabulous FPGA design flow using the Skywater 130 process.
-## Please fill in your project documentation in this README.md file
+This repo experiments an implementation of an FPGA from RTL to GDS with open Skywater-130 PDK. The design RTL was generated by FABulous framework. The fabric consists of 896 LUT4s (16x7 CLBs), 64 LUT5s (16x1 RegFiles), 8 DSPs and 8 BRAMs (8x1KB) with dual-ported memory blocks for register files and FIFOs. An embedded UART for configurations and CPU_IO interface (e.g. to RISC-V core) were also implemented in this version.
+
+ <p align="center">
+ <img src="./docs/source/eFPGA_ver3.png" width="50%" height="50%">
+ </p>
+
Refer to [README](docs/source/index.rst) for this sample project documentation.
diff --git a/docs/source/eFPGA_ver3.png b/docs/source/eFPGA_ver3.png
new file mode 100644
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