How to change network credentials [HC-1563] (#387)

* first draft of "Configure the network credentials of a Thing"

* Added template section

* grammar

* Removed template part

* TOC and header changes

* Apply suggestions from code review

Co-authored-by: Renat0Ribeir0 <[email protected]>

* linter

* Updates from feedback

* Update Configure-or-change-the-network-credentials-of-a-Thing.md

* img alt text case and punctuation

* Changed "Network Credentials" to "Network" to match UI

* Adjusted heading name to clarify difference between the two sections

* Added short intro paragraph + divider

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Co-authored-by: Renat0Ribeir0 <[email protected]>
Co-authored-by: seaxwi <[email protected]>

Author: 3 people

content/Arduino Cloud/General Cloud/Configure-or-change-the-network-credentials-of-a-Thing.md

@@ -0,0 +1,50 @@
+---
+title: "Configure or change the network credentials of a Thing"
+id: 14416141314332
+---
+
+Learn how to configure or change the network credentials of a Thing in Arduino Cloud.
+
+In this article:
+
+- [Configure the network credentials of a new Thing](#configure)
+- [Change the network credentials of a Thing](#change)
+
+---
+
+## Configure the network credentials of a new Thing {#configure}
+
+1. Go to the [Things tab](https://app.arduino.cc/things) and select a Thing, or create a new Thing by clicking on the **+ Create Thing** button or the **+Thing** button in the top right corner.
+
+1. If the Thing doesn't have an associated device, go to the **Associated Device** section and click the **Select Device** button. Get help [adding a device to Arduino Cloud](https://support.arduino.cc/hc/en-us/articles/360016495559-Add-and-connect-a-device-to-Arduino-Cloud#upload-sketch) if needed.
+
+    ![Associated device section with select device button.](img/associated_device.png)
+
+1. Go to the **Network** section and click the **Configure** button.
+
+    ![Network section with configure button.](img/Network_add.png)
+
+1. Enter your network credentials:
+
+    - Wi-Fi: Enter your Wi-Fi name (SSID) and password (encryption key).
+    - If using ESP32 and ESP8266: Enter the secret key that was provided when adding the device.
+    - If using Arduino SIM: Use [these credentials](https://support.arduino.cc/hc/en-us/articles/360013825159-What-are-the-credentials-for-the-Arduino-SIM-card).
+    - If using Arduino with LoRa®: The credentials are added automatically.
+
+1. Go to the **Sketch** tab in the top right and upload the sketch to load the credentials on the board.
+
+## Change the network credentials of a Thing {#change}
+
+1. Go to the [Things tab](https://app.arduino.cc/things) and select the Thing that needs its network credentials updated.
+
+1. Go to the **Network** section and click the **Change** button.
+
+    ![Network credential information and a button labeled change.](img/Network_change.png)
+
+1. Enter your network credentials:
+    - Wi-Fi: Enter your Wi-Fi name (SSID) and password (encryption key).
+    - If using ESP32 and ESP8266: Enter the secret key that was provided when adding the device.
+    - If using Arduino SIM: Use [these credentials](https://support.arduino.cc/hc/en-us/articles/360013825159-What-are-the-credentials-for-the-Arduino-SIM-card).
+    - If using Arduino with LoRa®: The credentials are added automatically.
+
+1. Go to the **Sketch** tab in the top right and upload the sketch to load the credentials on the board.