docs(readme): fix typo

stainless-app[bot] · stainless-app[bot] · commit 42a8e012ecb1 · 2025-05-29T16:52:07.000Z
diff --git a/README.md b/README.md
@@ -336,7 +336,7 @@ async function main() {
 main();
 ```
 
-Error codes are as followed:
+Error codes are as follows:
 
 | Status Code | Error Type                 |
 | ----------- | -------------------------- |
