Reuse images from .github (#155)

Author: gastaldi

README.md

@@ -1,5 +1,5 @@
 <div align="center">
-<img src="https://github.com/quarkiverse/quarkus-jgit/blob/main/docs/modules/ROOT/assets/images/quarkus.svg" width="67" height="70" ><img src="https://github.com/quarkiverse/quarkus-jgit/blob/main/docs/modules/ROOT/assets/images/plus-sign.svg" height="70" ><img src="https://github.com/quarkiverse/quarkus-jgit/blob/main/docs/modules/ROOT/assets/images/jgit.svg" height="70" >
+<img src="https://github.com/quarkiverse/.github/blob/main/assets/images/quarkus.svg" width="67" height="70" ><img src="https://github.com/quarkiverse/.github/blob/main/assets/images/plus-sign.svg" height="70" ><img src="https://github.com/quarkiverse/quarkus-jgit/blob/main/docs/modules/ROOT/assets/images/jgit.svg" height="70" >
 
 # Quarkus JGit
 </div>
@@ -45,4 +45,4 @@ Thanks go to these wonderful people ([emoji key](https://allcontributors.org/doc
 
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
-This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!