Update README.md

Author: Stormix

README.md

@@ -4,7 +4,7 @@ Laravel-Mix Twig Extension
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-[![Donations Badge](https://stormix.co/donate/images/badge.svg)]({https://stormix.co/donate/})
+[![Donations Badge](https://stormix.co/donate/images/badge.svg)](https://stormix.co/donate/)
 
 The Laravel mix `version` task appends a unique hash to filename,
 allowing for cache-busting.