Rearrange headings to avoid repetition

doc/user/clusters/agent/index.md

@@ -455,7 +455,9 @@ kubectl logs -f -l=app=gitlab-kubernetes-agent -n gitlab-kubernetes-agent
 
 GitLab administrators can additionally view the [Kubernetes Agent Server logs](../../../administration/clusters/kas.md#troubleshooting).
 
-### Agent logs - Transport: Error while dialing failed to WebSocket dial
+### Agent logs
+
+#### Transport: Error while dialing failed to WebSocket dial
 
 ```json
 {"level":"warn","time":"2020-11-04T10:14:39.368Z","msg":"GetConfiguration failed","error":"rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing failed to WebSocket dial: failed to send handshake request: Get \\\"https://gitlab-kas:443/-/kubernetes-agent\\\": dial tcp: lookup gitlab-kas on 10.60.0.10:53: no such host\""}
@@ -473,7 +475,7 @@ This error occurs if the `kas-address` doesn't include a trailing slash. To fix
 `wss` or `ws` URL ends with a training slash, such as `wss://GitLab.host.tld:443/-/kubernetes-agent/`
 or `ws://GitLab.host.tld:80/-/kubernetes-agent/`.
 
-### Agent logs - ValidationError(Deployment.metadata)
+#### ValidationError(Deployment.metadata)
 
 ```json
 {"level":"info","time":"2020-10-30T08:56:54.329Z","msg":"Synced","project_id":"root/kas-manifest001","resource_key":"apps/Deployment/kas-test001/nginx-deployment","sync_result":"error validating data: [ValidationError(Deployment.metadata): unknown field \"replicas\" in io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta, ValidationError(Deployment.metadata): unknown field \"selector\" in io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta, ValidationError(Deployment.metadata): unknown field \"template\" in io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta]"}
@@ -483,7 +485,7 @@ This error is shown if a manifest file is malformed, and Kubernetes can't
 create specified objects. Make sure that your manifest files are valid. You
 may try using them to create objects in Kubernetes directly for more troubleshooting.
 
-### Agent logs - Error while dialing failed to WebSocket dial: failed to send handshake request
+#### Error while dialing failed to WebSocket dial: failed to send handshake request
 
 ```json
 {"level":"warn","time":"2020-10-30T09:50:51.173Z","msg":"GetConfiguration failed","error":"rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing failed to WebSocket dial: failed to send handshake request: Get \\\"https://GitLabhost.tld:443/-/kubernetes-agent\\\": net/http: HTTP/1.x transport connection broken: malformed HTTP response \\\"\\\\x00\\\\x00\\\\x06\\\\x04\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x00\\\\x05\\\\x00\\\\x00@\\\\x00\\\"\""}
@@ -499,7 +501,7 @@ issue is in progress, directly edit the deployment with the
 `kubectl edit deployment gitlab-kas` command, and change `--listen-websocket=true` to `--listen-websocket=false`. After running that command, you should be able to use
 `grpc://gitlab-kas.<YOUR-NAMESPACE>:8150`.
 
-### Agent logs - Decompressor is not installed for grpc-encoding
+#### Decompressor is not installed for grpc-encoding
 
 ```json
 {"level":"warn","time":"2020-11-05T05:25:46.916Z","msg":"GetConfiguration.Recv failed","error":"rpc error: code = Unimplemented desc = grpc: Decompressor is not installed for grpc-encoding \"gzip\""}
@@ -508,7 +510,7 @@ issue is in progress, directly edit the deployment with the
 This error is shown if the version of the agent is newer that the version of KAS.
 To fix it, make sure that both `agentk` and KAS use the same versions.
 
-### Agent logs - Certificate signed by unknown authority
+#### Certificate signed by unknown authority
 
 ```json
 {"level":"error","time":"2021-02-25T07:22:37.158Z","msg":"Reverse tunnel","mod_name":"reverse_tunnel","error":"Connect(): rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing failed to WebSocket dial: failed to send handshake request: Get \\\"https://GitLabhost.tld:443/-/kubernetes-agent/\\\": x509: certificate signed by unknown authority\""}