docs: update .all-contributorsrc [skip ci]

allcontributors[bot] · web-flow · commit bb671ae4244f · 2020-01-21T15:42:24.000Z
diff --git a/.all-contributorsrc b/.all-contributorsrc
@@ -13,6 +13,16 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "timheuer",
+      "name": "Tim Heuer",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/4821?v=4",
+      "profile": "https://timheuer.com/blog/",
+      "contributions": [
+        "code",
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7,
