docs(readme): fix typo

stainless-app[bot] · RobertCraigie · commit 6f8fce9cf7a9 · 2025-05-07T21:05:33.000+01:00
diff --git a/README.md b/README.md
@@ -214,7 +214,7 @@ async function main() {
 main();
 ```
 
-Error codes are as followed:
+Error codes are as follows:
 
 | Status Code | Error Type                 |
 | ----------- | -------------------------- |
