Update linux-installation.mdx

- Minor updates in config description for  DOWNLOADED_PACKAGED_HEADERS_PATH and DISTRO_KERNEL_HEADERS_PATH
- Added example values for above mentioned configs

Author: ankit-k2io

src/content/docs/ebpf/linux-installation.mdx

@@ -237,15 +237,15 @@ The `newrelic-ebpf-agent.conf` file contains the following configuration paramet
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         <tr>
             <td>`DOWNLOADED_PACKAGED_HEADERS_PATH`</td>
-            <td>Sets the absolute path of the complete directory where the required linux headers are manually downloaded and placed for the eBPF agent to use. This is useful under restricted environments where agent is not able to download required linux headers. The required headers are identified by the agent based on the kernel version. The absolute path in case of K8s should also be prepended with /host when necessary. Use only after NR support recommendation.</td>
+            <td>Sets the absolute path of the complete directory where the required linux headers are manually downloaded and placed for the eBPF agent to use. This is useful under restricted environments where agent is not able to download required linux headers. The required headers are identified by the agent based on the kernel version. Use only after NR support recommendation.</td>
             <td>`String (Path)`</td>
-            <td>`""`</td>
+            <td>`"/path/to/downloaded/headers/dir"`</td>
         </tr>
         <tr>
             <td>`DISTRO_KERNEL_HEADERS_PATH`</td>
-            <td>Sets the absolute path of the complete directory where the linux headers are present for the eBPF agent to use. This is useful where required linux headers could not be installed or path could not be determined. The absolute path in case of K8s should also be prepended with /host when necessary. Use only after NR support recommendation.</td>
+            <td>Sets the absolute path of the complete directory where the linux headers are present for the eBPF agent to use. This is useful where required linux headers could not be installed or path could not be determined. Use only after NR support recommendation.</td>
             <td>`String (Path)`</td>
-            <td>`""`</td>
+            <td>`"/usr/src/kernels"`</td>
         </tr>
         <tr>
             <td>`PROTOCOLS_HTTP_ENABLED`</td>