Built new icons, icomoon.json and devicon.css (#512)

Co-authored-by: amacado <amacado@users.noreply.github.com>

devicon.css

@@ -1,10 +1,10 @@
 @font-face {
   font-family: 'devicon';
-  src:  url('fonts/devicon.eot?dvqgvl');
-  src:  url('fonts/devicon.eot?dvqgvl#iefix') format('embedded-opentype'),
-    url('fonts/devicon.ttf?dvqgvl') format('truetype'),
-    url('fonts/devicon.woff?dvqgvl') format('woff'),
-    url('fonts/devicon.svg?dvqgvl#devicon') format('svg');
+  src:  url('fonts/devicon.eot?e4qd2c');
+  src:  url('fonts/devicon.eot?e4qd2c#iefix') format('embedded-opentype'),
+    url('fonts/devicon.ttf?e4qd2c') format('truetype'),
+    url('fonts/devicon.woff?e4qd2c') format('woff'),
+    url('fonts/devicon.svg?e4qd2c#devicon') format('svg');
   font-weight: normal;
   font-style: normal;
   font-display: block;
@@ -25,6 +25,39 @@
   -moz-osx-font-smoothing: grayscale;
 }
 
+.devicon-r-plain:before {
+  content: "\e98e";
+}
+.devicon-r-original:before {
+  content: "\e98f";
+}
+.devicon-ocaml-plain-wordmark:before {
+  content: "\e990";
+}
+.devicon-ocaml-plain:before {
+  content: "\e991";
+}
+.devicon-matlab-plain:before {
+  content: "\e992";
+}
+.devicon-jupyter-plain-wordmark:before {
+  content: "\e993";
+}
+.devicon-jupyter-plain:before {
+  content: "\e994";
+}
+.devicon-fsharp-plain:before {
+  content: "\e995";
+}
+.devicon-elixir-plain-wordmark:before {
+  content: "\e996";
+}
+.devicon-elixir-plain:before {
+  content: "\e997";
+}
+.devicon-aarch64-plain:before {
+  content: "\e998";
+}
 .devicon-xd-line:before {
   content: "\e97a";
 }