add project description.

Author: overcat

README.md

@@ -1 +1,25 @@
-# stellar-identicon-go
+# Stellar Identicon Generator (Golang)
+
+The go implementation of [SEP-0033](https://github.com/stellar/stellar-protocol/blob/master/ecosystem/sep-0033.md), 
+which you can use to generate identicons for Stellar wallets - unique icons, generated based on the wallet public key.
+
+## Install
+```shell
+go get -u github.com/overcat/stellar-identicon-go
+```
+
+## Usage
+```go
+import identicon "github.com/overcat/stellar-identicon-go"
+
+func main() {
+	publicKey := "GAQL4ZLRIJBGSCXE6XC4XPZ5W6FGCJHXLAMB4M7ZQ52HFPDTL6GSVP4W"
+	img, err := identicon.Generate(publicKey, identicon.Width, identicon.Height)
+	if err != nil {
+		
+	}
+}
+```
+
+## Thanks
+This project was inspired by [LOBSTR](https://github.com/Lobstrco).