fix(content): add missing redirects for event-sources/kernel page

Signed-off-by: Leonardo Grasso <me@leonardograsso.com>

content/en/docs/concepts/event-sources/kernel/_index.md

@@ -7,6 +7,8 @@ aliases:
 - drivers
 - ../drivers
 - ../../drivers
+- ../../event-sources/kernel
+- ../../event-sources/drivers
 ---
 
 Falco uses different instrumentations to analyze the system workload and pass security events to {{< glossary_tooltip text="userspace" term_id="user-space" >}}. We usually refer to these instrumentations as {{< glossary_tooltip text="drivers" term_id="drivers" >}} since a driver runs in {{< glossary_tooltip text="kernelspace" term_id="kernel-space" >}}. The driver provides the **syscall event source** since the monitored events are strictly related to the {{< glossary_tooltip text="syscall" term_id="syscalls" >}} context.