docs: Update FAQ on kernel config with tetra probe config

Fixes #4114

Signed-off-by: Aritra Dey <[email protected]>

Author: AritraDey-Dev

docs/content/en/docs/installation/faq.md

@@ -28,6 +28,33 @@ which might take some work on older kernels.
 
 ### What are the Linux kernel configuration options needed to run Tetragon?
 
+As a first step to verify your kernel configuration, you can use the
+`tetra probe config` command. This will output a list of detected kernel
+features relevant to Tetragon. Missing features can indicate that your
+kernel is not configured correctly.
+
+```shell
+sudo tetra probe config
+```
+The Output should be similar to this:
+
+Example output:
+```
+override_return: true
+buildid: true
+kprobe_multi: true
+uprobe_multi true
+fmodret: true
+fmodret_syscall: true
+signal: true
+large: true
+link_pin: true
+lsm: false
+missed_stats_kprobe_multi: false
+missed_stats_kprobe: false
+batch_update: true
+```
+
 This is the list of needed configuration options, note that this might evolve
 quickly with new Tetragon features: