Update README.md

Author: bnasslahsen

README.md

@@ -2,7 +2,7 @@
 [![Quality Gate](https://sonarcloud.io/api/project_badges/measure?project=springdoc_springdoc-openapi&metric=alert_status)](https://sonarcloud.io/dashboard?id=springdoc_springdoc-openapi)
 [![Known Vulnerabilities](https://snyk.io/test/github/springdoc/springdoc-openapi.git/badge.svg)](https://snyk.io/test/github/springdoc/springdoc-openapi.git)
 
-![Octocat](https://springdoc.github.io/springdoc-openapi-demos/assets/images/springdoc-openapi.png)
+![Octocat](https://springdoc.org/assets/images/springdoc-openapi.png)
 
 # [Full documentation](https://springdoc.org)
 
@@ -52,7 +52,7 @@ springdoc.swagger-ui.path=/swagger-ui.html
 ## [Demo Spring Boot 1 webmvc with OpenAPI 3](https://springdoc-openapi-test-app1-courteous-puku.eu-de.mybluemix.net/).
 ## [Demo Spring Boot 2 webflux with OpenAPI 3](https://springdoc-openapi-test-app3-terrific-rabbit.eu-de.mybluemix.net/swagger-ui.html).
 
-![Branching](https://springdoc.github.io/springdoc-openapi-demos/images/pets.png)
+![Branching](https://springdoc.org/assets/images/pets.png)
 
 ## Source code of the Demo Applications
 * [https://github.com/springdoc/springdoc-openapi-demos.git](https://github.com/springdoc/springdoc-openapi-demos.git).