fixes pr

Author: ozRunAI

docs/admin/runai-setup/self-hosted/k8s/backend.md

@@ -46,7 +46,7 @@ To apply the changes run `helm upgrade` and use `--set` to set specific configur
 |  Key     | Change   | Description |
 |----------|----------|-------------|
 | `global.ingress.ingressClass` |  Ingress class  |  Run:ai default is using NGINX. If your cluster has a different ingress controller, you can configure the ingress class to be created by Run:ai |
-| `global.ingress.tlsSecretName`  | TLS secret name  | Run:ai requires the creation of a secret with domain certificate. See [above](#domain-certificate). If the `runai-backend` namespace already had such a secret, you can set the secret name here  |
+| `global.ingress.tlsSecretName`  | TLS secret name  | Run:ai requires the creation of a secret with [domain certificate](./preparations.md#domain-certificate). If the `runai-backend` namespace already had such a secret, you can set the secret name here  |
 | `<component>` <br> &ensp;`resources:` <br> &emsp; `limits:` <br> &emsp; &ensp; `cpu: 500m` <br> &emsp; &ensp; `memory: 512Mi` <br> &emsp; `requests:` <br> &emsp; &ensp; `cpu: 250m` <br> &emsp; &ensp; `memory: 256Mi`  | Pod request and limits  |  Set Run:ai and 3rd party services' resources  |
 |<div style="width:200px"></div>| | |