docs: update .all-contributorsrc [skip ci]

allcontributors[bot] · web-flow · commit 6b3036f74f39 · 2020-09-16T12:32:33.000Z
diff --git a/.all-contributorsrc b/.all-contributorsrc
@@ -249,6 +249,15 @@
       "contributions": [
         "content"
       ]
+    },
+    {
+      "login": "sanguino",
+      "name": "sanguino",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/2077168?v=4",
+      "profile": "https://github.com/sanguino",
+      "contributions": [
+        "content"
+      ]
     }
   ],
   "projectName": "javascript-testing-best-practices",
