DOCS-3867: Add OS details to micro setup instructions (#4214)

Author: JessamyT

docs/operate/get-started/setup-micro.md

@@ -43,6 +43,10 @@ To quickly try out Viam for microcontrollers, you can use the pre-built binary `
 
 ## Quickstart
 
+{{% hiddencontent %}}
+Viam provides installers to flash an ESP32 from macOS or Linux running on the x86_64 or ARM64 (AArch64) processor architectures.
+{{% /hiddencontent %}}
+
 To get started quickly with the pre-built `viam-micro-server` binary, follow these steps:
 
 1. Create a [Viam app](https://app.viam.com) account.
@@ -51,9 +55,10 @@ To get started quickly with the pre-built `viam-micro-server` binary, follow the
 1. Add a new _{{< glossary_tooltip term_id="machine" text="machine" >}}_ using the button in the top right corner of the **LOCATIONS** tab in the app.
    A machine represents your device.
 
-1. From your machine's page in the Viam app, follow the setup instructions to install `viam-micro-server` on your device and connect it to the cloud.
+1. From your machine's page in the Viam app, click **View setup instructions** and follow the steps for your operating system.
+   The app provides commands to install `viam-micro-server` and connect it to the cloud with your machine's unique credentials.
 
-   A secure connection is automatically established between your machine and the Viam app.
+1. A secure connection is automatically established between your machine and the Viam app.
    When you update your machine's configuration, `viam-micro-server` automatically gets the updates.
 
    You are ready to [configure](/operate/get-started/supported-hardware/) any of the components listed above on your machine.

docs/operate/get-started/setup.md

@@ -99,7 +99,8 @@ Install `viam-server` on the computer or single-board computer (SBC) that is dir
 1. Add a new [_{{< glossary_tooltip term_id="machine" text="machine" >}}_](/operate/get-started/basics/#what-is-a-machine) using the button in the top right corner of the **LOCATIONS** tab in the app.
    A machine represents your device.
 
-1. From your machine's page in the Viam app, follow the setup instructions to install `viam-server` on your device and connect it to the cloud.
+1. From your machine's page in the Viam app, click **View setup instructions** and follow the steps for your operating system.
+   The app provides commands to install `viam-server` and connect it to the cloud with your machine's unique credentials.
 
 1. A secure connection is automatically established between your machine and the Viam app.
    When you update your machine's configuration, `viam-server` automatically gets the updates.