repo: add some keywords

Codex- · Codex- · commit 8fa43b6f3781 · 2021-12-01T00:08:45.000+13:00
diff --git a/package.json b/package.json
@@ -52,5 +52,9 @@
     "release-it": "^14.11.8",
     "ts-jest": "^27.0.7",
     "typescript": "^4.5.2"
-  }
+  },
+  "keywords": [
+    "cosmiconfig",
+    "typescript"
+  ]
 }
