docs(samples) - streamliine and clarify webhook samples (#264)

* streamline and clarify webhook samples

Change-Id: I80d80b42f60ac6ccc643afb7b2931916d6843813

* remove sessionInfo config

Change-Id: I1b14852ad9e238e7cdc04dbb418ed5ed0fca2992

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

packages/google-cloud-dialogflow-cx/README.md

@@ -138,6 +138,7 @@ Samples are in the [`samples/`](https://github.com/googleapis/nodejs-dialogflow-
 
 | Sample                      | Source Code                       | Try it |
 | --------------------------- | --------------------------------- | ------ |
+| Configure-webhook-to-set-form-parameter-as-optional-or-required | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/configure-webhook-to-set-form-parameter-as-optional-or-required.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/configure-webhook-to-set-form-parameter-as-optional-or-required.js,samples/README.md) |
 | Create-agent | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/create-agent.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/create-agent.js,samples/README.md) |
 | Create-page | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/create-page.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/create-page.js,samples/README.md) |
 | Delete-page | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/delete-page.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/delete-page.js,samples/README.md) |
@@ -155,7 +156,6 @@ Samples are in the [`samples/`](https://github.com/googleapis/nodejs-dialogflow-
 | Long-running-operation | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/long-running-operation.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/long-running-operation.js,samples/README.md) |
 | Quickstart | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/quickstart.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/quickstart.js,samples/README.md) |
 | Update-intent | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/update-intent.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/update-intent.js,samples/README.md) |
-| Webhook-configure-optional-or-required-form-parameters | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/webhook-configure-optional-or-required-form-parameters.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/webhook-configure-optional-or-required-form-parameters.js,samples/README.md) |
 | Webhook-configure-session-parameters-enable-agent-response | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/webhook-configure-session-parameters-enable-agent-response.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/webhook-configure-session-parameters-enable-agent-response.js,samples/README.md) |
 | Webhook-configure-session-parameters-trigger-transition | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/webhook-configure-session-parameters-trigger-transition.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/webhook-configure-session-parameters-trigger-transition.js,samples/README.md) |
 | Webhook-configure-session-parameters | [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/webhook-configure-session-parameters.js) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/webhook-configure-session-parameters.js,samples/README.md) |

packages/google-cloud-dialogflow-cx/samples/README.md

@@ -12,6 +12,7 @@
 
 * [Before you begin](#before-you-begin)
 * [Samples](#samples)
+  * [Configure-webhook-to-set-form-parameter-as-optional-or-required](#configure-webhook-to-set-form-parameter-as-optional-or-required)
   * [Create-agent](#create-agent)
   * [Create-page](#create-page)
   * [Delete-page](#delete-page)
@@ -29,7 +30,6 @@
   * [Long-running-operation](#long-running-operation)
   * [Quickstart](#quickstart)
   * [Update-intent](#update-intent)
-  * [Webhook-configure-optional-or-required-form-parameters](#webhook-configure-optional-or-required-form-parameters)
   * [Webhook-configure-session-parameters-enable-agent-response](#webhook-configure-session-parameters-enable-agent-response)
   * [Webhook-configure-session-parameters-trigger-transition](#webhook-configure-session-parameters-trigger-transition)
   * [Webhook-configure-session-parameters](#webhook-configure-session-parameters)
@@ -51,6 +51,23 @@ Before running the samples, make sure you've followed the steps outlined in
 
 
 
+### Configure-webhook-to-set-form-parameter-as-optional-or-required
+
+View the [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/configure-webhook-to-set-form-parameter-as-optional-or-required.js).
+
+[![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/configure-webhook-to-set-form-parameter-as-optional-or-required.js,samples/README.md)
+
+__Usage:__
+
+
+`node samples/configure-webhook-to-set-form-parameter-as-optional-or-required.js`
+
+
+-----
+
+
+
+
 ### Create-agent
 
 View the [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/create-agent.js).
@@ -340,23 +357,6 @@ __Usage:__
 
 
 
-### Webhook-configure-optional-or-required-form-parameters
-
-View the [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/webhook-configure-optional-or-required-form-parameters.js).
-
-[![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-dialogflow-cx&page=editor&open_in_editor=samples/webhook-configure-optional-or-required-form-parameters.js,samples/README.md)
-
-__Usage:__
-
-
-`node samples/webhook-configure-optional-or-required-form-parameters.js`
-
-
------
-
-
-
-
 ### Webhook-configure-session-parameters-enable-agent-response
 
 View the [source code](https://github.com/googleapis/nodejs-dialogflow-cx/blob/main/samples/webhook-configure-session-parameters-enable-agent-response.js).