edits to NIM 2.20 docs and install script

Author: travisamartin

content/includes/nim/installation/optional-steps/disable-metrics-collection.md

@@ -6,6 +6,6 @@ files:
 - content/nim/disconnected/offline-install-guide.md
 ---
 
-If you’re not collecting metrics—because you didn’t install ClickHouse or don’t plan to use it—you must disable metrics collection in the `/etc/nms/nms.conf` file. This setup requires NGINX Agent version {{< lightweight-nim-nginx-agent-version >}}.
+If you’re not collecting metrics — because you didn’t install ClickHouse or don’t plan to use it —y ou must disable metrics collection in the `/etc/nms/nms.conf` file. This setup requires NGINX Agent version {{< lightweight-nim-nginx-agent-version >}}.
 
 For instructions, see [Disable metrics collection]({{< ref "nim/system-configuration/configure-clickhouse.md#disable-metrics-collection" >}}).

content/nim/deploy/kubernetes/deploy-using-helm.md

@@ -72,7 +72,7 @@ kubectl create secret docker-registry regcred \
 ### OpenShift
 
 ```shell
-oc new-project nms
+oc new-project nms && \
 oc create secret docker-registry regcred \
   --docker-server=private-registry.nginx.com \
   --docker-username=<NGINX JWT Token> \

content/nim/deploy/vm-bare-metal/install-nim-manual.md

@@ -58,7 +58,7 @@ Follow these steps to download the certificate and private key for NGINX Instanc
 
 Install NGINX Open Source or NGINX Plus on the host where you'll install NGINX Instance Manager. NGINX Instance Manager uses NGINX as a front-end proxy and for managing user access.
 
-- [Installing NGINX and NGINX Plus](https://docs.nginx.com/nginx/admin-guide/installing-nginx/)
+- [Installing NGINX and NGINX Plus]({{< ref "/nginx/admin-guide/installing-nginx/installing-nginx-plus.md" >}})
 
    <br>
 
@@ -88,9 +88,9 @@ Make sure to review the [Technical Specifications]({{< ref "/nim/fundamentals/te
 
 NGINX Instance Manager uses ClickHouse to store metrics, events, alerts, and configuration data.
 
-In 2.20.0, we introduced Lightweight mode, which can skip the ClickHouse installation entirely. It’s ideal if you don’t need monitoring data or want a simpler setup. This reduces system requirements and avoids the work of managing a metrics database. You can add ClickHouse later if your needs change.
+Starting in version 2.20.0, you can run NGINX Instance Manager in Lightweight mode, which skips the ClickHouse installation entirely. This setup works well if you don’t need monitoring data or want to reduce system requirements. It also avoids the effort of managing a metrics database. You can add ClickHouse later if your needs change.
 
-If you don’t need to store metrics, you can skip installing ClickHouse. But you must use NGINX Agent version {{< lightweight-nim-nginx-agent-version >}}, and you must disable metrics collection in the `/etc/nms/nms.conf` file.
+If you don’t need to store metrics, you can skip installing ClickHouse. But you must use NGINX Agent version {{< lightweight-nim-nginx-agent-version >}}, and you must disable metrics collection in the `/etc/nms/nms.conf` and `/etc/nms-sm.conf.yaml` files.
 
 For instructions, see [Disable metrics collection]({{< ref "nim/system-configuration/configure-clickhouse.md#disable-metrics-collection" >}}).
 
@@ -203,7 +203,7 @@ To install NGINX Instance Manager, you need to add the official repository to pu
 1. To upgrade to the latest version of the Instance Manager, run the following command:
 
    ```bash
-   sudo apt-get update
+   sudo apt-get update && \
    sudo apt-get install -y --only-upgrade nms-instance-manager
    ```
 

content/nim/system-configuration/configure-clickhouse.md

@@ -13,7 +13,7 @@ type:
 ## Overview
 
 NGINX Instance Manager uses ClickHouse to store metrics, events, alerts, and configuration data.  
-If your setup differs from the default configuration—for example, if you use a custom address, enable TLS, set a password, or turn off metrics—you need to update the `/etc/nms/nms.conf` file.
+If your setup differs from the default configuration — for example, if you use a custom address, enable TLS, set a password, or turn off metrics — you need to update the `/etc/nms/nms.conf` file.
 
 This guide explains how to update those settings so that NGINX Instance Manager can connect to ClickHouse correctly.
 
@@ -38,19 +38,27 @@ Unless otherwise specified in the `/etc/nms/nms.conf` file, NGINX Instance Manag
 
 ## Disable metrics collection
 
-As of version 2.20, NGINX Instance Manager can run without ClickHouse. This lightweight mode reduces system requirements and simplifies installation for users who do not need metrics. To use this setup, you must run NGINX Agent version {{< lightweight-nim-nginx-agent-version >}}.
+Starting in version 2.20, NGINX Instance Manager can run without ClickHouse. This lightweight mode reduces system requirements and simplifies installation for users who don't need metrics. To use this setup, you must run NGINX Agent version `{{< lightweight-nim-nginx-agent-version >}}`.
 
 To disable metrics collection after installing NGINX Instance Manager:
 
-1. Open the configuration file at `/etc/nms/nms.conf`.
-
+1. Open the config file at `/etc/nms/nms.conf`.
+   
 2. In the `[clickhouse]` section, set the following value:
 
    ```yaml
-   enable = false
+   clickhouse:
+      enable = false
    ```
 
-3. Restart the NGINX Instance Manager service:
+3. Open the `/etc/nms-sm-conf.yaml` file and set:
+
+   ```yaml
+   clickhouse:
+      enable = false
+   ```
+
+4. Restart the NGINX Instance Manager service:
 
    ```shell
    sudo systemctl restart nms