added example png, added credits, license section

README.md

@@ -1,16 +1,16 @@
 [![golangci-lint](https://github.com/everstake/bip39/actions/workflows/golangci-lint.yaml/badge.svg)](https://github.com/everstake/bip39/actions/workflows/golangci-lint.yaml)    [![CodeQL](https://github.com/everstake/bip39/actions/workflows/codeql.yml/badge.svg)](https://github.com/everstake/bip39/actions/workflows/codeql.yml)    [![Run Gosec](https://github.com/everstake/bip39/actions/workflows/gosec.yml/badge.svg)](https://github.com/everstake/bip39/actions/workflows/gosec.yml)    [![Go Build](https://github.com/everstake/bip39/actions/workflows/go.yml/badge.svg)](https://github.com/everstake/bip39/actions/workflows/go.yml)    [![goreleaser](https://github.com/everstake/bip39/actions/workflows/goreleaser.yml/badge.svg)](https://github.com/everstake/bip39/actions/workflows/goreleaser.yml)
 
-# Generation, verification of mnemonics in BIP39 standard and obtaining their hash in Argon2id format
+## CLI for generation and verification of mnemonics in BIP39 with hash in Argon2id
+![BIP39 mnemonics generation tool](assets/images/generate_example_1.png)
 
-### Fork: https://github.com/tyler-smith/go-bip39
 
-## Build
+### Build
     go build cmd/cli/bip39.go
 
-## Install
+### Install
     sudo install -t /usr/local/bin bip39
 
-## BIP39 mnemonic generation
+### BIP39 mnemonic generation
     bip39 generate
 
     --words value   Word count (default: 24)
@@ -21,11 +21,18 @@
     --dir value     Save file to directory (default: ~/bip39/mnemonics)
 
 
-## Check existing BIP39 mnemonic
+### Check existing BIP39 mnemonic
     bip39 existing
 
     --color value   First and last word color highlighting (default: green,blue)
                     Allowed colors: black, red, green, yellow, blue, magenta, cyan, white
     --save value    Save to file [yes/no] (default: no)
                     File name format: <Argon2idHash>_<TimestampUnixNano>.bip39
     --dir value     Save file to directory (default: ~/bip39/mnemonics)
+
+### Thanks
+Thanks to Tyler Smith for providing the implementation of [BIP39](https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki) in [Golang](https://github.com/tyler-smith/go-bip39) that allowed us to create this tool!
+
+### License
+This BIP39 tool is released under the terms of the MIT license.  
+See LICENSE for more information or see https://opensource.org/licenses/MIT.