docs: update .all-contributorsrc

Author: allcontributors[bot]

Diff for: .all-contributorsrc

@@ -1,4 +1,21 @@
 {
-    "projectName": "array-api-extra",
-    "projectOwner": "data-apis"
+  "projectName": "array-api-extra",
+  "projectOwner": "data-apis",
+  "files": [
+    "README.md"
+  ],
+  "commitType": "docs",
+  "commitConvention": "angular",
+  "contributorsPerLine": 7,
+  "contributors": [
+    {
+      "login": "lucascolley",
+      "name": "Lucas Colley",
+      "avatar_url": "https://avatars.githubusercontent.com/u/51488791?v=4",
+      "profile": "https://lucascolley.github.io",
+      "contributions": [
+        "code"
+      ]
+    }
+  ]
 }