Update example usage workflow for AMQP Sender node (#259)

* ⚡ Update example usage workflow

* ⚡ Add activate workflow note

docs/nodes/nodes-library/nodes/AMQPSender/README.md

@@ -18,8 +18,9 @@ You can find authentication information for this node [here](../../../credential
 
 ## Example Usage
 
-This workflow allows you to send a message to an [ActiveMQ](https://activemq.apache.org/) queue via AMQP Sender. You can also find the [workflow](https://n8n.io/workflows/512) on the website. This example usage workflow would use the following three nodes.
-- [Start](../../core-nodes/Start/README.md)
+This workflow allows you to send updates about the position of the ISS every minute to an [ActiveMQ](https://activemq.apache.org/) queue using the AMQP Sender node. You can also find the [workflow](https://n8n.io/workflows/762) on n8n.io. This example usage workflow uses the following nodes.
+- [Cron](../../core-nodes/Cron/README.md)
+- [HTTP Request](../../core-nodes/HTTPRequest/README.md)
 - [Set](../../core-nodes/Set/README.md)
 - [AMQP Sender]()
 
@@ -27,21 +28,77 @@ The final workflow should look like the following image.
 
 ![A workflow with the AMQP Sender node](./workflow.png)
 
-### 1. Start node
+### 1. Cron node
 
-The start node exists by default when you create a new workflow.
+The Cron node will trigger the workflow every minute.
 
-### 2. Set node
+1. Click on ***Add Cron Time***.
+2. Select 'Every Minute' from the ***Mode*** dropdown list.
+3. Click on ***Execute Node*** to run the node.
 
-1. Click on the *Add Value* button and select 'String' from the dropdown list.
-2. Enter `my_key`in the *Name* field.
-3. Enter `my_value` in the *Value* field.
+In the screenshot below, you will notice that the Cron node is configured to trigger the workflow every minute.
 
-### 3. AMQP Sender node
+![Using the Cron node to trigger the workflow every minute](./Cron_node.png)
+
+### 2. HTTP Request node (GET)
+
+This node will make a GET request to the API `https://api.wheretheiss.at/v1/satellites/25544/positions` to fetch the position of the ISS. This information gets passed on to the next node in the workflow.
+::: v-pre
+1. Enter `https://api.wheretheiss.at/v1/satellites/25544/positions` in the ***URL*** field. 
+2. Click on the ***Add Parameter*** button in the ***Query Parameters*** section.
+3. Enter `timestamps` in the ***Name*** field.
+4. Click on the gears icon next to the ***Value*** field and click on ***Add Expression***.
+5. Enter the following expression: `{{Date.now()}}`. This expression will return the current timestamp.
+6. Click on ***Execute Node*** to run the node.
+:::
+In the screenshot below, you will notice that the node makes a GET request to the API and returns the information about the location of the ISS.
+
+![Using the HTTP Request node to get the information about the location of the ISS](./HTTPRequest_node.png)
+
+### 3. Set node
+
+We will use the Set node to ensure that only the data that we set in this node gets passed on to the next nodes in the workflow.
+::: v-pre
+1. Click on ***Add Value*** and select 'String' from the dropdown list.
+2. Enter `Name` in the ***Name*** field.
+3. Click on the gears icon next to the ***Value*** field and click on ***Add Expression***.
+4. Select the following in the ***Variable Selector*** section: Nodes > HTTP Request > Output Data > JSON > 0 > name. You can also add the following expression: `{{$node["HTTP Request"].json["0"]["name"]}}`.
+5. Click on ***Add Value*** and select 'String' from the dropdown list.
+6. Enter `Latitude` in the ***Name*** field.
+7. Click on the gears icon next to the ***Value*** field and click on ***Add Expression***.
+8. Select the following in the ***Variable Selector*** section: Nodes > HTTP Request > Output Data > JSON > 0 > latitude. You can also add the following expression: `{{$node["HTTP Request"].json["0"]["latitude"]}}`.
+9. Click on ***Add Value*** and select 'String' from the dropdown list.
+10. Enter `Longitude` in the ***Name*** field.
+11. Click on the gears icon next to the ***Value*** field and click on ***Add Expression***.
+12. Select the following in the ***Variable Selector*** section: Nodes > HTTP Request > Output Data > JSON > 0 > longitude. You can also add the following expression: `{{$node["HTTP Request"].json["0"]["longitude"]}}`.
+13. Click on ***Add Value*** and select 'String' from the dropdown list.
+14. Enter `Timestamp` in the ***Name*** field.
+15. Click on the gears icon next to the ***Value*** field and click on ***Add Expression***.
+16. Select the following in the ***Variable Selector*** section: Nodes > HTTP Request > Output Data > JSON > 0 > timpestamp. You can also add the following expression: `{{$node["HTTP Request"].json["0"]["timestamp"]}}`.
+17. Toggle ***Keep Only Set*** to `true`. We set this option to true to ensure that only the data that we have set in this node get passed on to the next nodes in the workflow.
+18. Click on ***Execute Node*** to run the node.
+:::
+In the screenshot below, you will notice that the node uses the data from the previous node and returns the data that we set for the workflow.
+
+![Using the Set node to set the data](./Set_node.png)
+
+### 4. AMQP Sender node
+
+This node will send the data from the previous node to the `iss-position` queue in ActiveMQ. If you have created a queue with a different name in ActiveMQ, you can use that queue instead.
 
 1. First of all, you'll have to enter credentials for the AMQP Sender node. You can find out how to do that [here](../../../credentials/AMQP/README.md).
-2. Enter the name of the queue or topic in the *Queue / Topic* field.
-3. Click on *Execute Node* to run the workflow.
+2. Enter the name of the queue or topic in the ***Queue / Topic*** field.
+3. Click on ***Execute Node*** to run the node.
+
+In the screenshot below, you will notice that the node sends the data from the previous node to the `iss-position` queue in ActiveMQ.
+
+![Using the AMQP Sender node to send the data to a queue](./AMQPSender_node.png)
+
+::: tip 💡 Activate workflow for production
+This example workflow uses the Cron node, which is a Trigger node. You'll need to save the workflow and then click on the Activate toggle on the top right of the screen to activate the workflow. Your workflow will then be triggered as specified by the settings in the Cron node.
+:::
+
+
 
 ## Further Reading