Fixed repository path

Author: gusbemacbe

README.md

@@ -17,7 +17,7 @@
 As you want 24px and 26px icons to be colourful in the panel, and want the dark theme, please visit:
 
 * [Suru++ Lubuntu](https://github.com/gusbemacbe/suru-plus-lubuntu/)
-* [Suru++ Dark Lubuntu](https://github.com/gusbemacbe/suru-plus--dark-lubuntu/)
+* [Suru++ Dark Lubuntu](https://github.com/gusbemacbe/suru-plus-dark-lubuntu/)
 
 ### Installation without CLI