Fix broken links (#4300)

* fix CIS link
* fix installation methods link
* fix configuration file link

README.md

@@ -7,7 +7,7 @@ It is a fully [conformant Kubernetes distribution](https://landscape.cncf.io/?se
 
 To meet these goals, RKE2 does the following:
 
-- Provides [defaults and configuration options](https://docs.rke2.io/security/hardening_guide/) that allow clusters to pass the [CIS Kubernetes Benchmark](https://docs.rke2.io/security/cis_self_assessment/) with minimal operator intervention
+- Provides [defaults and configuration options](https://docs.rke2.io/security/hardening_guide/) that allow clusters to pass the [CIS Kubernetes Benchmark](https://docs.rke2.io/security/cis_self_assessment123/) with minimal operator intervention
 - Enables [FIPS 140-2 compliance](https://docs.rke2.io/security/fips_support/)
 - Supports SELinux policy and [Multi-Category Security (MCS)](https://selinuxproject.org/page/NB_MLS) label enforcement
 - Regularly scans components for CVEs using [trivy](https://github.com/aquasecurity/trivy) in our build pipeline
@@ -28,11 +28,11 @@ For a bit more, [check out our full quick start guide](https://docs.rke2.io/inst
 
 ## Installation
 
-A full breakdown of installation methods and information can be found [here](docs/install/methods.md).
+A full breakdown of installation methods and information can be found [here](https://docs.rke2.io/install/methods/).
 
 ## Configuration File
 
-The primary way to configure RKE2 is through its [config file](https://docs.rke2.io/install/install_options/install_options/#configuration-file). Command line arguments and environment variables are also available, but RKE2 is installed as a systemd service and thus these are not as easy to leverage.
+The primary way to configure RKE2 is through its [config file](https://docs.rke2.io/install/configuration#configuration-file). Command line arguments and environment variables are also available, but RKE2 is installed as a systemd service and thus these are not as easy to leverage.
 
 By default, RKE2 will launch with the values present in the YAML file located at `/etc/rancher/rke2/config.yaml`.