docs: add jameslamb as a contributor for code, doc, and translation (#555)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

Author: allcontributors[bot]

.all-contributorsrc

@@ -963,6 +963,17 @@
         "review",
         "design"
       ]
+    },
+    {
+      "login": "jameslamb",
+      "name": "James Lamb",
+      "avatar_url": "https://avatars.githubusercontent.com/u/7608904?v=4",
+      "profile": "https://github.com/jameslamb",
+      "contributions": [
+        "code",
+        "doc",
+        "translation"
+      ]
     }
   ],
   "contributorsPerLine": 7,