Add implemented svg

docs/images/implemented.svg

@@ -0,0 +1,14 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="890"
+    height="360">
+    <style>.opencollective-svg { cursor: pointer; }</style>
+    <a xlink:href="https://github.com/EstebanFuentealba" class="opencollective-svg" target="_blank"
+        rel="nofollow sponsored" id="EstebanFuentealba">
+        <image x="3" y="3" width="48" height="48"
+            href="https://avatars.githubusercontent.com/u/442927?v=4" />
+    </a>
+    <a xlink:href="https://github.com/FoxLy1312 " class="opencollective-svg" target="_blank"
+        rel="nofollow sponsored" id="FoxLy1312 ">
+        <image x="54" y="3" width="48" height="48"
+            href="https://avatars.githubusercontent.com/u/110127890?v=4" />
+    </a>
+</svg>