update doc

Author: codercat

README.md

@@ -14,8 +14,16 @@ Convert JSON Web Key (JWK) to PEM format.
 composer require codercat/jwk-to-pem
 ```
 
+## Test
+
+``` bash
+vendor/bin/phpunit
+```
+
 ## Usage
 
+#### Single JWK
+
 ``` php
 <?php
 
@@ -24,7 +32,7 @@ use CoderCat\JWKToPEM\JWKConverter;
 $jwkConverter = new JWKConverter();
 
 // !!!! RSA key type is currently only supported.
-$jwk = [
+$JWK = [
     "kty" => "RSA",
     "kid" => "zhA-H1DWOSgWQAIW7mewCYeaZLGpkgW_hXfq8jmV99I",
     "use" => "sig",
@@ -34,14 +42,12 @@ $jwk = [
 ];
 
 ```
-Convert to PEM format:
+Convert to PEM:
 
 ``` php
-$PEM = $jwkConverter->toPEM($jwk);
-echo $PEM;
+$PEM = $jwkConverter->toPEM($JWK);
 ```
-
-The PEM for this jwk:
+The PEM for this JWK:
 
 ```
 -----BEGIN PUBLIC KEY-----\r\n
@@ -54,12 +60,63 @@ yn0FGmGjrJXnyVJwyDiTrKRO36piMuiaJE2nIRJaLvhDN5M1K2VhSKPuaqUPyxLz\r\n
 BwIDAQAB\r\n
 -----END PUBLIC KEY-----
 ```
-
+#### Multiple JWK
 You can also convert multiple JWKs by using `multipleToPEM`:
+``` php
+<?php
+
+use CoderCat\JWKToPEM\JWKConverter;
+
+$jwkConverter = new JWKConverter();
+
+// !!!! RSA key type is currently only supported.
+$JWKs = [
+    [
+        'kty' => 'RSA',
+        'kid' => '86D88Kf',
+        'use' => 'sig',
+        'alg' => 'RS256',
+        'n' => 'iGaLqP6y-SJCCBq5Hv6pGDbG_SQ11MNjH7rWHcCFYz4hGwHC4lcSurTlV8u3avoVNM8jXevG1Iu1SY11qInqUvjJur--hghr1b56OPJu6H1iKulSxGjEIyDP6c5BdE1uwprYyr4IO9th8fOwCPygjLFrh44XEGbDIFeImwvBAGOhmMB2AD1n1KviyNsH0bEB7phQtiLk-ILjv1bORSRl8AK677-1T8isGfHKXGZ_ZGtStDe7Lu0Ihp8zoUt59kx2o9uWpROkzF56ypresiIl4WprClRCjz8x6cPZXU2qNWhu71TQvUFwvIvbkE1oYaJMb0jcOTmBRZA2QuYw-zHLwQ',
+        'e' => 'AQAB',
+    ],
+    [
+        'kty' => 'RSA',
+        'kid' => 'eXaunmL',
+        'use' => 'sig',
+        'alg' => 'RS256',
+        'n' => '4dGQ7bQK8LgILOdLsYzfZjkEAoQeVC_aqyc8GC6RX7dq_KvRAQAWPvkam8VQv4GK5T4ogklEKEvj5ISBamdDNq1n52TpxQwI2EqxSk7I9fKPKhRt4F8-2yETlYvye-2s6NeWJim0KBtOVrk0gWvEDgd6WOqJl_yt5WBISvILNyVg1qAAM8JeX6dRPosahRVDjA52G2X-Tip84wqwyRpUlq2ybzcLh3zyhCitBOebiRWDQfG26EH9lTlJhll-p_Dg8vAXxJLIJ4SNLcqgFeZe4OfHLgdzMvxXZJnPp_VgmkcpUdRotazKZumj6dBPcXI_XID4Z4Z3OM1KrZPJNdUhxw',
+        'e' => 'AQAB',
+    ],
+];
+```
+
+Convert to PEMs:
 
 ``` php
-$PEMs = $jwkConverter->multipleToPEM($jwkSet);
-// $PEMs now contains an array of PEMs
+$PEMs = $jwkConverter->multipleToPEM($JWKs);
+```
+The PEMs for this JWKs:
+``` php
+[
+    "-----BEGIN PUBLIC KEY-----\r\n
+    MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiGaLqP6y+SJCCBq5Hv6p\r\n
+    GDbG/SQ11MNjH7rWHcCFYz4hGwHC4lcSurTlV8u3avoVNM8jXevG1Iu1SY11qInq\r\n
+    UvjJur++hghr1b56OPJu6H1iKulSxGjEIyDP6c5BdE1uwprYyr4IO9th8fOwCPyg\r\n
+    jLFrh44XEGbDIFeImwvBAGOhmMB2AD1n1KviyNsH0bEB7phQtiLk+ILjv1bORSRl\r\n
+    8AK677+1T8isGfHKXGZ/ZGtStDe7Lu0Ihp8zoUt59kx2o9uWpROkzF56ypresiIl\r\n
+    4WprClRCjz8x6cPZXU2qNWhu71TQvUFwvIvbkE1oYaJMb0jcOTmBRZA2QuYw+zHL\r\n
+    wQIDAQAB\r\n
+    -----END PUBLIC KEY-----",
+    "-----BEGIN PUBLIC KEY-----\r\n
+    MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4dGQ7bQK8LgILOdLsYzf\r\n
+    ZjkEAoQeVC/aqyc8GC6RX7dq/KvRAQAWPvkam8VQv4GK5T4ogklEKEvj5ISBamdD\r\n
+    Nq1n52TpxQwI2EqxSk7I9fKPKhRt4F8+2yETlYvye+2s6NeWJim0KBtOVrk0gWvE\r\n
+    Dgd6WOqJl/yt5WBISvILNyVg1qAAM8JeX6dRPosahRVDjA52G2X+Tip84wqwyRpU\r\n
+    lq2ybzcLh3zyhCitBOebiRWDQfG26EH9lTlJhll+p/Dg8vAXxJLIJ4SNLcqgFeZe\r\n
+    4OfHLgdzMvxXZJnPp/VgmkcpUdRotazKZumj6dBPcXI/XID4Z4Z3OM1KrZPJNdUh\r\n
+    xwIDAQAB\r\n
+    -----END PUBLIC KEY-----",
+]
 ```