Update index.html

libqgit2 is not in 'playground' anymore, so url has to be corrected

Author: digitalist

index.html

@@ -138,7 +138,7 @@ <h5>
 		<img src="images/libgit2/[email protected]" />
 		<h6>C++ Qt</h6>
 		<h5>
-			<a href="https://projects.kde.org/projects/playground/libs/libqgit2/">libqgit2</a>
+			<a href="https://quickgit.kde.org/?p=libqgit2.git">libqgit2</a>
 		</h5>
 		</li>
 		<li>