Improve README

README.md

@@ -58,49 +58,7 @@ docker run --rm -it -v "$(pwd):/data" ghcr.io/essentialkaos/web-utils:latest # p
 
 ### Usage
 
-```
-Usage: web-utils command args…
-
-Commands
-
-┌ csr-gen host                        Generate key and a certificate signing request
-└ csr-gen config                      Generate key and a certificate signing request from OpenSSL configuration file
-  csr-info csr                        Print info from certificate signing request
-  csr-config-gen host                 Generate OpenSSL configuration file for certificate signing request generation
-  crt-info crt                        Print info from certificate
-┌ hpkp-gen csr backup                 Generate HTTP public key pinning (HPKP) header from CSR file
-│ hpkp-gen key backup                 Generate HTTP public key pinning (HPKP) header from KEY file
-└ hpkp-gen crt backup                 Generate HTTP public key pinning (HPKP) header from CRT file
-┌ ocsp-gen server-cert issuer-cert    Generate OCSP stapling file from server certificate
-└ ocsp-gen cert-chain                 Generate OCSP stapling file from server certificate chain
-  ocsp-check host server-name         Check OCSP response status for some host
-  0rtt-check host server-name         Check 0-RTT support
-  htpasswd user password              Generate record with MD5 password hash for .htpasswd files
-
-Options
-
-  --ecc, -E        Generate ECC certificate signing request
-  --size, -s size  Key size (ECC: 256-384 / RSA: 2048-8192)
-  --help, -h       Show this help message
-  --version, -v    Show information about version
-
-Examples
-
-  web-utils csr-gen domain.com
-  Generate RSA key and a certificate signing request for domain.com
-
-  web-utils hpkp-gen domain.com.csr domain.com.backup.key
-  Generate HTTP public key pinning (HPKP) header with server and backup pins
-
-  web-utils ocsp-gen sever.crt issuer.crt
-  Generate OCSP stapling file using server and issuer certificates
-
-  web-utils ocsp-gen sever-chain.crt
-  Generate OCSP stapling file using certificate chain
-
-  web-utils ocsp-check essentialkaos.com
-  Check OCSP response status for essentialkaos.com
-```
+<img src=".github/images/usage.svg" />
 
 ### Build Status