fix comments

src/PostFailedTests.php

@@ -51,7 +51,7 @@ final class PostFailedTests{
             }
         }
 
-        //so its a new iss or changed error, lets upload screenshot and compose the body
+        //so its a new issue or changed error, lets upload screenshot and compose the body
         $issueBody='';
         if(file_exists("/tmp/$name.png")){
             $data=$this->repo->addReleaseAttachment(1,"/tmp/$name.png");