chore: add readme for storagetransfer (#1985)

Author: vishwarajanand

appengine/standard/tasks/snippets/README.md

@@ -2,7 +2,7 @@
 
 ## Description
 
-Al code in the snippets directory demonstrate how to invoke Cloud Tasks from PHP.
+All code in the snippets directory demonstrate how to invoke Cloud Tasks from PHP.
 
 `src/create_task.php` is a simple function to create tasks with App Engine routing.
 

storagetransfer/README.md

@@ -0,0 +1,63 @@
+# Google Cloud Storage Transfer Samples
+
+## Description
+
+All code in the snippets directory demonstrate how to invoke
+[Cloud Storage Trasfer][cloud-storage-transfer] from PHP.
+
+`src/quickstart.php` is a sample function to create and run a transfer job between two GCS buckets.
+
+[cloud-storage-transfer]: https://cloud.google.com/storage-transfer/docs/create-transfers
+
+## Setup:
+
+1.  **Enable APIs** - [Enable the Storage Transfer Service API](https://console.cloud.google.com/flows/enableapi?apiid=storagetransfer.googleapis.com)
+    and create a new project or select an existing project.
+2.  **Download The Credentials** - Click "Go to credentials" after enabling the APIs. Click "New Credentials"
+    and select "Service Account Key". Create a new service account, use the JSON key type, and
+    select "Create". Once downloaded, set the environment variable `GOOGLE_APPLICATION_CREDENTIALS`
+    to the path of the JSON key that was downloaded.
+3.  **Clone the repo** and cd into this directory
+
+    ```sh
+    $ git clone https://github.com/GoogleCloudPlatform/php-docs-samples
+    $ cd php-docs-samples/storagetransfer
+    ```
+4.  **Install dependencies** via [Composer](http://getcomposer.org/doc/00-intro.md).
+    Run `php composer.phar install` (if composer is installed locally) or `composer install`
+    (if composer is installed globally).
+
+
+## Samples
+
+To run the Storage Transfer Samples, run any of the files in `src/` on the CLI:
+
+```
+$ php src/quickstart.php
+
+Usage: quickstart.php $bucketName $sourceGcsBucketName $sinkGcsBucketName
+
+  @param string $projectId The Project ID
+  @param string $sourceGcsBucketName The Storage bucket name
+  @param string $sinkGcsBucketName The Storage bucket name
+```
+
+
+## The client library
+
+This sample uses the [Cloud Storage Transfer Client Library for PHP][google-cloud-php-storage-transfer].
+You can read the documentation for more details on API usage and use GitHub
+to [browse the source][google-cloud-php-source] and  [report issues][google-cloud-php-issues].
+
+[google-cloud-php-storage-transfer]: https://cloud.google.com/php/docs/reference/cloud-storage-transfer/latest
+[google-cloud-php-source]: https://github.com/GoogleCloudPlatform/google-cloud-php
+[google-cloud-php-issues]: https://github.com/GoogleCloudPlatform/google-cloud-php/issues
+[google-cloud-sdk]: https://cloud.google.com/sdk/
+
+## Contributing changes
+
+* See [CONTRIBUTING.md](../../CONTRIBUTING.md)
+
+## Licensing
+
+* See [LICENSE](../../LICENSE)

tasks/README.md

@@ -2,7 +2,7 @@
 
 ## Description
 
-Al code in the snippets directory demonstrate how to invoke
+All code in the snippets directory demonstrate how to invoke
 [Cloud Tasks][cloud-tasks] from PHP.
 
 `src/create_http_task.php` is a simple function to create tasks with an HTTP target.
@@ -44,7 +44,7 @@ Al code in the snippets directory demonstrate how to invoke
     * `PROJECT_ID` is your Google Cloud Project id.
     * `QUEUE_ID` is your queue id.
       Queue IDs already created can be listed with `gcloud tasks queues list`.
-    * `LOCATION_ID` is the location of your queue.  
+    * `LOCATION_ID` is the location of your queue.
       Determine the location ID, which can be discovered with
       `gcloud tasks queues describe <QUEUE_NAME>`, with the location embedded in
       the "name" value (for instance, if the name is