Update 'index.html'

index.html

@@ -41,7 +41,7 @@
             <li class="deco"><img src="./static/svg/sticker_deco_catwalking_orange_soft-square.svg" /></li>
 			<li class="picto"><img src="./static/svg/etc.svg" /></li>
 			<li class="info">Toolkit</li>
-            <li class="deco"><img src="./static/svg/sticker_deco_api_orange_hex.svg" /></li>
+            <li class="deco"><img src="./static/svg/sticker_deco_generator_yellow_hex.svg" /></li>
 			<li class="info">Tools</li>
 			<li class="info">Vernacular toolkit</li>
 			<li class="info">Try-out online</li>