update to latest practices

.badges/code_style-black-000000.svg

+<?xml version="1.0" encoding="UTF-8" ?>
+<svg xmlns="http://www.w3.org/2000/svg" width="114" height="20">
+  <linearGradient id="b" x2="0" y2="100%">
+    <stop offset="0" stop-color="#bbb" stop-opacity=".1" />
+    <stop offset="1" stop-opacity=".1" />
+  </linearGradient>
+  <mask id="anybadge_1">
+    <rect width="114" height="20" rx="3" fill="#fff" />
+  </mask>
+  <g mask="url(#anybadge_1)">
+    <path fill="#555" d="M0 0h72v20H0z" />
+    <path fill="#000000" d="M72 0h42v20H72z" />
+    <path fill="url(#b)" d="M0 0h114v20H0z" />
+  </g>
+  <g
+    fill="#fff"
+    text-anchor="middle"
+    font-family="DejaVu Sans,Verdana,Geneva,sans-serif"
+    font-size="11"
+  >
+    <text x="37.0" y="15" fill="#010101" fill-opacity=".3">code style</text>
+    <text x="36.0" y="14">code style</text>
+  </g>
+  <g
+    fill="#fff"
+    text-anchor="middle"
+    font-family="DejaVu Sans,Verdana,Geneva,sans-serif"
+    font-size="11"
+  >
+    <text x="94.0" y="15" fill="#010101" fill-opacity=".3">black</text>
+    <text x="93.0" y="14">black</text>
+  </g>
+</svg>