fix: update index.html

Author: DENis24-am

docs/index.html

@@ -286,7 +286,7 @@
         <a href="">Home</a>
         <a href="https://onix-systems.github.io/PerchEye-SDK-Multiplatform/how-to-use">How to Use</a>
         <a href="https://onix-systems.github.io/PerchEye-SDK-Multiplatform/advantages.html">Advantages</a>
-        <a href="documentation.html" target="_blank">Documentation</a>
+        <a href="https://onix-systems.github.io/PerchEye-SDK-Multiplatform/documentation.html">Documentation</a>
         <a href="https://github.com/Onix-Systems/PerchEye-SDK-Multiplatform">Download</a>
     </div>
 </div>