docs(go.d/ping): clarify permissions (netdata#18868)

src/go/plugin/go.d/modules/ping/metadata.yaml

@@ -22,25 +22,30 @@ modules:
       data_collection:
         metrics_description: |
           This module measures round-trip time and packet loss by sending ping messages to network hosts.
-          
+
           There are two operational modes:
-          
-          - privileged (send raw ICMP ping, default). Requires
-            CAP_NET_RAW [capability](https://man7.org/linux/man-pages/man7/capabilities.7.html) or root privileges:
-            > **Note**: set automatically during Netdata installation.
-          
-            ```bash
-            sudo setcap CAP_NET_RAW=eip <INSTALL_PREFIX>/usr/libexec/netdata/plugins.d/go.d.plugin
-            ```
-          
-          - unprivileged (send UDP ping, Linux only).
-            Requires configuring [ping_group_range](https://www.man7.org/linux/man-pages/man7/icmp.7.html):
-          
+
+          - **Privileged** (send raw ICMP ping, default). Requires the necessary permissions ([CAP_NET_RAW](https://man7.org/linux/man-pages/man7/capabilities.7.html) on Linux, `setuid` bit on other systems).
+
+            These permissions are **automatically** set during Netdata installation. However, if you need to set them manually:
+              - set `CAP_NET_RAW` (Linux only).
+                ```bash
+                sudo setcap CAP_NET_RAW=eip <INSTALL_PREFIX>/usr/libexec/netdata/plugins.d/go.d.plugin
+                ```
+              - set `setuid` bit (Other OS).
+                ```bash
+                sudo chmod 4750 <INSTALL_PREFIX>/usr/libexec/netdata/plugins.d/go.d.plugin
+                ```
+
+          - **Unprivileged** (send UDP ping, Linux only). Requires configuring [ping_group_range](https://www.man7.org/linux/man-pages/man7/icmp.7.html):
+
+            This configuration is **not set automatically** and requires manual configuration.
+
             ```bash
             sudo sysctl -w net.ipv4.ping_group_range="0 2147483647"
             ```
-            To persist the change add `net.ipv4.ping_group_range=0 2147483647` to `/etc/sysctl.conf` and
-            execute `sudo sysctl -p`.
+
+            To persist the change add `net.ipv4.ping_group_range=0 2147483647` to `/etc/sysctl.conf` and execute `sudo sysctl -p`.
         method_description: ""
       supported_platforms:
         include: []
@@ -121,15 +126,15 @@ modules:
             - name: Multi-instance
               description: |
                 > **Note**: When you define multiple jobs, their names must be unique.
-                
+
                 Multiple instances.
               config: |
                 jobs:
                   - name: example1
                     hosts:
                       - 192.0.2.0
                       - 192.0.2.1
-                
+
                   - name: example2
                     packets: 10
                     hosts: