Update README.md

Signed-off-by: Віктор Дуйко <braveradovenchyk@gmail.com>

Author: bravesasha

README.md

@@ -7,7 +7,7 @@
 </p>
 
 ![GitHub contributors](https://img.shields.io/github/contributors/layer5io/layer5.svg)
-![GitHub](https://img.shields.io/github/license/layer5io/layer5.svg) 
+[![GitHub](https://img.shields.io/github/license/layer5io/layer5.svg)](https://github.com/layer5io/wasm-filters/blob/master/LICENSE) 
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