FAQ.md

@@ -139,6 +139,14 @@ Primitive types are usually mapped to primitive types in the corresponding progr
 
 Mustache tags such as `isString`, `isNumber` are for enum models only.
 
+### How can I update the samples? I couldn't find the script under `./bin/` or Windows batch files under `.\bin\windows`?
+
+As of Jun 2020, we've switched to `./bin/generate-samples.sh` for updating Petstore samples. For example, to update Ruby petstore client samples, please run `./bin/generate-samples.sh ./bin/configs/ruby*`.
+
+`./bin/configs/other/` is another folder that stores the config files for generators that are less active.
+
+For Windows users, please run the script in [Git BASH](https://gitforwindows.org/)
+
 ## git
 
 ### How can I rebase my PR on the latest master?