tweak instructions around how to deal with hidden parameter warnings …

…in generatio nscript readme.

src/schema/slack/functions/_scripts/README.md

@@ -23,29 +23,8 @@ corresponding test, the tests must be removed manually.
    > ./generate
    ```
 
-3. This will output something like the following:
+3. For now, the script will only generate warnings if it encounters hidden parameters. If you see warnings around hidden parameters, carefully review the generated output. As much as possible, we want to prevent hidden parameters from being released. At the same time, we have released hidden parameters in this SDK in the past, and so for backwards compatibility reasons, we have kept them in. As such, **ensure no new hidden parameters are introduced**.
 
-   ```txt
-   Cleaning folder directory
-   Generating code & tests for Slack function: add_pin
-   Generating code & tests for Slack function: add_user_to_usergroup
-   Generating code & tests for Slack function: archive_channel
-   Generating code & tests for Slack function: create_channel
-   Generating code & tests for Slack function: create_usergroup
-   Generating code & tests for Slack function: delay
-   Generating code & tests for Slack function: invite_user_to_channel
-   Generating code & tests for Slack function: open_form
-   Generating code & tests for Slack function: remove_user_from_usergroup
-   Generating code & tests for Slack function: reply_in_thread
-   Generating code & tests for Slack function: send_dm
-   Generating code & tests for Slack function: send_ephemeral_message
-   Generating code & tests for Slack function: send_message
-   Generating code & tests for Slack function: update_channel_topic
-   Generated 14 Slack functions with their unit tests
-   Updated functions module export
-   Formatting Slack function files...
-   Linting Slack function files...
-   ```
 
 If it completes without any linter errors, you should be good to go, with new,
 formatted and linted TypeScript files for all of the Slack functions included in