Edit docs and add timeout test

Author: khromov

CheckSSL.php

@@ -99,6 +99,11 @@ public function check(): ?array
         return $this->getResults();
     }
 
+    public function getTimeout(): float 
+    {
+        return $this->timeOut;
+    }
+
     /**
      * @param resource|false $siteStream
      * @return array

README.md

@@ -120,7 +120,7 @@ print_r($example3);
 ```
 
 
-#### Custom output format
+#### Custom output format / custom timeout
 
 ``` php
 <?php
@@ -134,8 +134,9 @@ $data = [ 'https://symfony.com', 'https://getlaminas.org'];
 $dateFormat = 'U';
 $formatString = 'd-m-Y H:i:s';
 $timeZone = 'America/Sao_Paulo';
+$timeOut = 30
 
-$checkSLL = new CheckSSL($data, $dateFormat, $formatString, $timeZone);
+$checkSLL = new CheckSSL($data, $dateFormat, $formatString, $timeZone, $timeOut);
 
 print_r($checkSLL->check());
 ```

tests/CheckSSLTest.php

@@ -58,6 +58,13 @@ public function testCustomDate() {
         );
     }
 
+    public function testCustomTimeout() {
+
+        $checkSLL = new CheckSSL([], '', '', '', 60.0);
+
+        $this->assertEquals(60.0, $checkSLL->getTimeout());
+    }
+
     public function test() {
 
         $this->expectException(TypeError::class);