docs: update sample logo url

Author: soartec-lab

README.md

@@ -108,7 +108,7 @@ Thank you to all our sponsors! 🍻
 Support orval development by [Open Collective](https://opencollective.com/orval) and your logo will be displayed here with a link to your website.
 
 <a href="https://opencollective.com/orval">
-  <img src="./logo/orval-logo-horizontal.svg?raw=true" width="300" alt="Become a sponsor" />
+  <img src="https://orval.dev/images/logo/orval-logo-horizontal.svg?raw=true" width="300" alt="Become a sponsor" />
 </a>
 
 ## Backers
@@ -118,13 +118,13 @@ Thank you to all our backers! 🙏
 Support us with a one-time donation and help us continue our activities on [Open Collective](https://opencollective.com/orval).
 
 <a href="https://opencollective.com/orval">
-  <img src="./logo/emblem.svg?raw=true" width="50" height="50" alt="Backer" />
+  <img src="https://orval.dev/images/emblem.svg" width="50" height="50" alt="Backer" />
 </a>
 <a href="https://opencollective.com/orval">
-  <img src="./logo/emblem.svg?raw=true" width="50" height="50" alt="Backer" />
+  <img src="https://orval.dev/images/emblem.svg" width="50" height="50" alt="Backer" />
 </a>
 <a href="https://opencollective.com/orval">
-  <img src="./logo/emblem.svg?raw=true" width="50" height="50" alt="Backer" />
+  <img src="https://orval.dev/images/emblem.svg" width="50" height="50" alt="Backer" />
 </a>
 
 ## Star History