add WP Engine to the sponsors section, thank you!!!

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

README.md

@@ -30,6 +30,8 @@ With sponsorships/donations or support plans we establish a channel for reciproc
 [<img src="./img/Aledade_logo.png" alt="Aledade logo" width="202" height="70">](https://www.aledade.com/)
 </br></br>
 [<img src="./img/jumptrading.png" alt="Jump Trading logo" width="362" height="63">](https://www.jumptrading.com/)
+</br></br>
+[<img src="./img/wpengine.png" alt="WP Engine logo" width="331" height="63">](https://wpengine.com/)
 
 #### Silver sponsors