fix: render footer links as links and add ID them

Rendering links as links instead of superscript links helps the links
stand out. And adding links make the superscript links clickable.

README.md

@@ -33,8 +33,17 @@ In summary, the announcement of the for-profit company was not well received and
 
 Your forever enthusiastic Gitea Community.
 
-[^0]: https://github.com/go-gitea/gitea/blob/main/CONTRIBUTING.md#owners
-[^1]: https://blog.gitea.io/2022/10/open-source-sustainment-and-the-future-of-gitea/
+<div id="0">
+
+\[0\]: [https://github.com/go-gitea/gitea/blob/main/CONTRIBUTING.md#owners](https://github.com/go-gitea/gitea/blob/main/CONTRIBUTING.md#owners)
+
+</div>
+
+<div id="1">
+
+\[1\]: [https://blog.gitea.io/2022/10/open-source-sustainment-and-the-future-of-gitea/](https://blog.gitea.io/2022/10/open-source-sustainment-and-the-future-of-gitea/)
+
+</div>
 
 ---