docs: update .all-contributorsrc [skip ci]

allcontributors[bot] · web-flow · commit c66d7c0cb368 · 2020-05-10T08:08:42.000Z
diff --git a/.all-contributorsrc b/.all-contributorsrc
@@ -213,6 +213,15 @@
       "contributions": [
         "content"
       ]
+    },
+    {
+      "login": "roywalker",
+      "name": "roywalker",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/611846?v=4",
+      "profile": "http://roywalker.me",
+      "contributions": [
+        "content"
+      ]
     }
   ],
   "projectName": "javascript-testing-best-practices",
