Update old Wordpress doc links

Motivation: consolidated into /wordpress

readme.txt

@@ -79,7 +79,7 @@ WARNING: this update contains changes that may break specific setups, as detaile
 
 If you have made any code modifications to your Wordpress installation to directly interact with the OneSignal SDK, this version will break your implementation. Please revert your code modifications prior to upgrading and use our improved dashboard functionality to configure your OneSignal integration instead.
 
-Learn more: https://documentation.onesignal.com/docs/wordpress-plugin-30
+Learn more: https://documentation.onesignal.com/docs/wordpress
 
 - Support migration to new configuration flow.
 - Simpler configuration interface.

v2/views/config.php

@@ -41,7 +41,7 @@
       <span style="padding:0 20px 15px; color:#3A3DB2; font-weight:700;">
           Migrate Settings to OneSignal.com<br><br>
           <p style="font-size:1.15rem;font-weight:500">All OneSignal prompt configurations on this page are moving to OneSignal.com.</p>
-          <button type="button" class="ui medium teal button" onclick="window.open('https://documentation.onesignal.com/docs/wordpress-plugin-30','_blank');">Learn More</button>
+          <button type="button" class="ui medium teal button" onclick="window.open('https://documentation.onesignal.com/docs/wordpress','_blank');">Learn More</button>
           <form method="post" action="" style="margin-bottom: 20px; margin-top: 20px;">
             <p style="font-size:1.15rem;">Save your current settings to a txt file</p>
             <?php wp_nonce_field('onesignal_export_nonce'); ?>

v3/README.md

@@ -1,6 +1,6 @@
 OneSignal WordPress Plugin - v3.0.0
 ====================================
-[OneSignal WordPress Plugin 3.0 – Documentation](https://documentation.onesignal.com/docs/wordpress-plugin-30)
+[OneSignal WordPress Plugin 3.0 – Documentation](https://documentation.onesignal.com/docs/wordpress)
 
 ## Overview
 

v3/onesignal-admin/onesignal-admin.php

@@ -62,7 +62,7 @@ function onesignal_admin_page()
     ?>
     <div style="margin-bottom: 20px;">
       <span style="margin-bottom:35px;color:#E54B4D; font-weight:700;">
-        <a href="https://documentation.onesignal.com/docs/wordpress-plugin-30" target="_blank">Getting Started →	</a>
+        <a href="https://documentation.onesignal.com/docs/wordpress" target="_blank">Getting Started →	</a>
       </span>
     </div>
     <?php