Update BACKERS.md, resize logos

BACKERS.md

@@ -4,7 +4,6 @@ PostgREST ongoing development is only possible thanks to our Sponsors and Backer
 
 ## Lead Backers
 
-- [Christiaan Westerbeek](https://devotis.nl)
 - [Daniel Babiak](https://github.com/d-babiak)
 - [Michel Pelletier](https://github.com/michelp/)
 
@@ -12,3 +11,9 @@ PostgREST ongoing development is only possible thanks to our Sponsors and Backer
 
 - Tsingson Qin
 - Jay Hannah
+- Robert Stolarz
+- Kofi Gumbs
+
+## Former Backers
+
+- [Christiaan Westerbeek](https://devotis.nl)

README.md

@@ -22,12 +22,12 @@ API than you are likely to write from scratch.
     <tr>
       <td align="center" valign="middle">
         <a href="https://tryretool.com/?utm_source=sponsor&utm_campaign=postgrest" target="_blank">
-          <img width="444px" src="static/retool.png">
+          <img width="222px" src="static/retool.png">
         </a>
       </td>
       <td align="center" valign="middle">
         <a href="https://patreon.com/postgrest" target="_blank">
-          <img width="444px" src="https://opencollective.com/static/images/become_sponsor.svg">
+          <img width="222px" src="https://opencollective.com/static/images/become_sponsor.svg">
         </a>
       </td>
     </tr>