Task ReadMe changes (GoogleCloudPlatform#1420)

* Readme update

* fix queue name

Author: averikitsch

tasks/README.md

@@ -2,10 +2,10 @@
 
 This sample demonstrates using the Cloud Tasks client library.
 
-`CreateHTTPTask.java` constructs a task with an HTTP target and pushes it
+`CreateHttpTask.java` constructs a task with an HTTP target and pushes it
 to your queue.
 
-`CreateHTTPTask.java` constructs a task with an HTTP target and OIDC token and
+`CreateHttpTask.java` constructs a task with an HTTP target and OIDC token and
 pushes it to your queue.
 
 ## Initial Setup
@@ -39,7 +39,7 @@ Then the queue ID, as specified at queue creation time. Queue IDs already
 created can be listed with `gcloud beta tasks queues list`.
 
 ```
-export QUEUE_ID=my-queue
+export QUEUE_ID=<QUEUE_NAME>
 ```
 
 And finally the location ID, which can be discovered with
@@ -52,7 +52,7 @@ location is "us-central1").
 export LOCATION_ID=<YOUR_ZONE>
 ```
 
-### Using HTTP Push Queues
+### Creating Tasks with HTTP Targets
 
 Set an environment variable for the endpoint to your task handler. This is an
 example url:

tasks/src/main/java/com/example/task/CreateHttpTaskWithToken.java

@@ -38,7 +38,7 @@ public static void main(String[] args) throws Exception {
     try (CloudTasksClient client = CloudTasksClient.create()) {
       // Variables provided by the system variables.
       // projectId = "my-project-id";
-      // queueName = "my-appengine-queue";
+      // queueName = "my-queue";
       // location = "us-central1";
       // url = "https://example.com/taskhandler";
       String payload = "hello";