fix(docs): update READMEs with new samples (#185)

Author: Benjamin E. Coe

asset/snippets/README.md

@@ -12,9 +12,14 @@
 
 * [Before you begin](#before-you-begin)
 * [Samples](#samples)
+  * [Create Feed](#create-feed)
+  * [Delete Feed](#delete-feed)
   * [Export Assets](#export-assets)
   * [Get Batch Asset History](#get-batch-asset-history)
+  * [Get Feed](#get-feed)
+  * [List Feeds](#list-feeds)
   * [Asset History Quickstart](#asset-history-quickstart)
+  * [Update Feed](#update-feed)
 
 ## Before you begin
 
@@ -25,6 +30,44 @@ Before running the samples, make sure you've followed the steps outlined in
 
 
 
+### Create Feed
+
+Create Feed.
+
+View the [source code](https://github.com/googleapis/nodejs-asset/blob/master/samples/createFeed.js).
+
+[![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-asset&page=editor&open_in_editor=samples/createFeed.js,samples/README.md)
+
+__Usage:__
+
+
+`node createFeed <FEED_ID> "storage.googleapis.com/<BUCKET_NAME>", projects/<PROJECT_ID>/topics/<TOPIC_ID>`
+
+
+-----
+
+
+
+
+### Delete Feed
+
+Delete Feed.
+
+View the [source code](https://github.com/googleapis/nodejs-asset/blob/master/samples/deleteFeed.js).
+
+[![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-asset&page=editor&open_in_editor=samples/deleteFeed.js,samples/README.md)
+
+__Usage:__
+
+
+`node deleteFeed "project/<PROJECT_NUMBER>/feeds/<FEED_ID>"`
+
+
+-----
+
+
+
+
 ### Export Assets
 
 Export asserts to specified dump file path.
@@ -63,6 +106,44 @@ __Usage:__
 
 
 
+### Get Feed
+
+Get Feed.
+
+View the [source code](https://github.com/googleapis/nodejs-asset/blob/master/samples/getFeed.js).
+
+[![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-asset&page=editor&open_in_editor=samples/getFeed.js,samples/README.md)
+
+__Usage:__
+
+
+`node getFeed "project/<PROJECT_NUMBER>/feeds/<FEED_ID>"`
+
+
+-----
+
+
+
+
+### List Feeds
+
+List Feeds.
+
+View the [source code](https://github.com/googleapis/nodejs-asset/blob/master/samples/listFeeds.js).
+
+[![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-asset&page=editor&open_in_editor=samples/listFeeds.js,samples/README.md)
+
+__Usage:__
+
+
+`node listFeeds`
+
+
+-----
+
+
+
+
 ### Asset History Quickstart
 
 Batch get history of assets.
@@ -77,6 +158,25 @@ __Usage:__
 `node getBatchAssetHistory "storage.googleapis.com/<BUCKET_NAME>"`
 
 
+-----
+
+
+
+
+### Update Feed
+
+Update Feed.
+
+View the [source code](https://github.com/googleapis/nodejs-asset/blob/master/samples/updateFeed.js).
+
+[![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/nodejs-asset&page=editor&open_in_editor=samples/updateFeed.js,samples/README.md)
+
+__Usage:__
+
+
+`node updateFeed "project/<PROJECT_NUMBER>/feeds/<FEED_ID>" projects/<PROJECT_ID>/topics/<TOPIC_ID>`
+
+