finishing single node

content/rancher/v2.x/en/installation/air-gap-single-node/install-rancher/_index.md

@@ -21,7 +21,8 @@ Choose from the following options:
 
 If you are installing Rancher in a development or testing environment where identity verification isn't a concern, install Rancher using the self-signed certificate that it generates. This installation option omits the hassle of generating a certificate yourself.
 
-Log into your Linux host, and then run the installation command below. Replace `<REGISTRY.YOURDOMAIN.COM:PORT>` with your private registry URL and port.
+Log into your Linux host, and then run the installation command below. Replace `<REGISTRY.YOURDOMAIN.COM:PORT>` with your private registry URL and port. Replace `<RANCHER_VERSION_TAG>` with release tag of the [Rancher version]({{< baseurl >}}/rancher/v2.x/en/installation/server-tags/) that you want to install.
+
 
     docker run -d --restart=unless-stopped \
     -p 80:80 -p 443:443 \
@@ -48,6 +49,7 @@ Placeholder | Description
 `<PRIVATE_KEY.pem>` | The path to the private key for your certificate.
 `<CA_CERTS>` | The path to the certificate authority's private key.
 `<REGISTRY.YOURDOMAIN.COM:PORT>` | Your private registry URL and port.
+`<RANCHER_VERSION_TAG>` | The release tag of the [Rancher version]({{< baseurl >}}/rancher/v2.x/en/installation/server-tags/) that you want to install.
 
 ```
 docker run -d --restart=unless-stopped \
@@ -76,6 +78,8 @@ Placeholder | Description
 `<FULL_CHAIN.pem>` | The path to your full certificate chain.
 `<PRIVATE_KEY.pem>` | The path to the private key for your certificate.
 `<REGISTRY.YOURDOMAIN.COM:PORT>` | Your private registry URL and port. Use the `--no-cacerts` as argument to the container to disable the default CA certificate generated by Rancher.
+`<RANCHER_VERSION_TAG>` | The release tag of the [Rancher version]({{< baseurl >}}/rancher/v2.x/en/installation/server-tags/) that you want to install.
+
 
 ```
 docker run -d --restart=unless-stopped \

content/rancher/v2.x/en/installation/air-gap-single-node/prepare-private-registry/_index.md

@@ -6,7 +6,11 @@ aliases:
 
 ## A. Collect Image Sources
 
-Using a computer with internet access, browse to our Rancher [releases page](https://github.com/rancher/rancher/releases) and find the version that you want to install. Download the following three files, which are required to install Rancher in an air gap environment:
+Using a computer with internet access, browse to our [releases page](https://github.com/rancher/rancher/releases) and find the Rancher 2.x.x release that you want to install. Don't download releases marked `rc` or `Pre-release`, as they are not stable for production environments.
+
+![Choose Release Version]({{< baseurl >}}/img/rancher/choose-release-version.png)
+
+From the release's **Assets** section, download the following three files, which are required to install Rancher in an air gap environment:
 
 
 | Release File | Description |