docs: Remove old CLI commands (#760)

Quick fix for #742.

Related to #756. That PR has added documentation for development
webhooks.

Co-authored-by: Christoph Bühler <buehler@users.noreply.github.com>

src/KubeOps.Cli/README.md

@@ -7,11 +7,13 @@ as well as managing resources in your Kubernetes cluster.
 ## Installation
 
 To install the CLI into your solution / project, first create a new tool manifest:
+
 ```bash
 dotnet new tool-manifest
 ```
 
 Then install the CLI:
+
 ```bash
 dotnet tool install KubeOps.Cli
 ```
@@ -23,20 +25,11 @@ This allows you to use the CLI with `dotnet kubeops`.
 Here is a brief overview over the available commands
 (for all options and descriptions, use `-h` or `--help`):
 
-- `version`: prints the version information for the actual connected Kubernetes cluster
-- `install`: install the CRDs for the given solution into the cluster
-- `uninstall`: uninstall the CRDs for the given solution from the cluster
-- `generator`: entry command for generator commands (i.e. has subcommands), all commands
-  output their result to the stdout or the given output path
-    - `cert`: generate a CA & server certificate for usage with webhooks
-    - `crd`: generate the CRDs
-    - `docker`: generate the dockerfile
-    - `installer`: generate the installer files (i.e. kustomization yaml) for the operator
-    - `operator`: generate the deployment for the operator
-    - `rbac`: generate the needed rbac roles / role bindings for the operator
-- `webhook`: entry command for webhook related operations
-    - `install`: generate the server certificate and install the service / webhook registration
-    - `register`: register the currently implemented webhooks to the currently selected cluster
+- `api-version`, `av`: Prints the version information for the actual connected Kubernetes cluster
+- `install`, `i`: Install the CRDs for the given solution into the cluster
+- `uninstall`, `u`: Uninstall the CRDs for the given solution from the cluster
+- `generate`, `gen`, `g`: Generates elements related to the operator
+  - `operator`, `op`: Generate the all files necessary for deployment for the operator, including any webhooks
 
 ### Example