Update docs

README.md

@@ -66,11 +66,12 @@ See [Documentation](https://grafana.com/docs/beyla/) and the [tutorials](https:/
  enabled. BTF became enabled by default on most Linux distributions with kernel 5.14 or higher. 
  You can check if your kernel has BTF enabled by verifying if `/sys/kernel/btf/vmlinux` exists on your system.
  If you need to recompile your kernel to enable BTF, the configuration option `CONFIG_DEBUG_INFO_BTF=y` must be
- set. 
-- eBPF enabled on the host
+ set.
+- Alternatively, RHEL 4.18 Linux kernels (at least build 348) are also supported, due to their heavily backported nature.
+- eBPF enabled on the host.
 - For instrumenting Go programs, they must have been compiled with at least Go 1.17. We currently
  support Go applications built with a major **Go version no earlier than 3 versions** behind the current
- stable major release. 
+ stable major release.
 - Some level of elevated permissions to execute the instrumenter:
  - On host systems, running Beyla requires `sudo`.
  - For Kubernetes we have detailed configuration example on how to run with minimum

docs/sources/_index.md

@@ -45,6 +45,7 @@ Beyla offers the following features:
  You can check if your kernel has BTF enabled by verifying if `/sys/kernel/btf/vmlinux` exists on your system.
  If you need to recompile your kernel to enable BTF, the configuration option `CONFIG_DEBUG_INFO_BTF=y` must be
  set.
+- Alternatively, RHEL 4.18 Linux kernels (at least build 348) are also supported, due to their heavily backported nature.
 - eBPF enabled in the host.
 - For instrumenting Go programs, they must have been compiled with at least Go 1.17. We currently
  support Go applications built with a major **Go version no earlier than 3 versions** behind the current