docs: Update documentation with new subcommand forms

Remove the old subcommands from the documentation and replace them with
the new form (without the redundant `kata-` prefix).

Signed-off-by: Daniel Knittl-Frank <knittl89+git@googlemail.com>

docs/Developer-Guide.md

@@ -104,7 +104,7 @@ The build will create the following:
 You can check if your system is capable of creating a Kata Container by running the following:
 
 ```
-$ sudo kata-runtime kata-check
+$ sudo kata-runtime check
 ```
 
 If your system is *not* able to run Kata Containers, the previous command will error out and explain why.

docs/Documentation-Requirements.md

@@ -25,7 +25,7 @@ All documents must:
 - Have a `.md` file extension.
 - Include a TOC (table of contents) at the top of the document with links to
   all heading sections. We recommend using the
-  [`kata-check-markdown`](https://github.com/kata-containers/tests/tree/master/cmd/check-markdown)
+  [`check-markdown`](https://github.com/kata-containers/tests/tree/master/cmd/check-markdown)
   tool to generate the TOC.
 - Be linked to from another document in the same repository.
 

docs/Upgrading.md

@@ -48,10 +48,10 @@ Alternatively, if you are using Kata Containers version 1.12.0 or newer, you
 can check for newer releases using the command line:
 
 ```bash
-$ kata-runtime kata-check --check-version-only
+$ kata-runtime check --check-version-only
 ```
 
-There are various other related options. Run `kata-runtime kata-check --help`
+There are various other related options. Run `kata-runtime check --help`
 for further details.
 
 # Configuration changes

docs/install/container-manager/containerd/containerd-install.md

@@ -18,7 +18,7 @@
 >
 > - If you decide to proceed and install a Kata Containers release, you can
 >   still check for the latest version of Kata Containers by running
->   `kata-runtime kata-check --only-list-releases`.
+>   `kata-runtime check --only-list-releases`.
 >
 > - These instructions will not work for Fedora 31 and higher since those
 >   distribution versions only support cgroups version 2 by default. However,

docs/install/gce-installation-guide.md

@@ -6,7 +6,7 @@
 * [Install Kata](#install-kata)
 * [Create a Kata-enabled Image](#create-a-kata-enabled-image)
 
-Kata Containers on Google Compute Engine (GCE) makes use of [nested virtualization](https://cloud.google.com/compute/docs/instances/enable-nested-virtualization-vm-instances). Most of the installation procedure is identical to that for Kata on your preferred distribution, but enabling nested virtualization currently requires extra steps on GCE. This guide walks you through creating an image and instance with nested virtualization enabled. Note that `kata-runtime kata-check` checks for nested virtualization, but does not fail if support is not found.
+Kata Containers on Google Compute Engine (GCE) makes use of [nested virtualization](https://cloud.google.com/compute/docs/instances/enable-nested-virtualization-vm-instances). Most of the installation procedure is identical to that for Kata on your preferred distribution, but enabling nested virtualization currently requires extra steps on GCE. This guide walks you through creating an image and instance with nested virtualization enabled. Note that `kata-runtime check` checks for nested virtualization, but does not fail if support is not found.
 
 As a pre-requisite this guide assumes an installed and configured instance of the [Google Cloud SDK](https://cloud.google.com/sdk/downloads). For a zero-configuration option, all of the commands below were been tested under [Google Cloud Shell](https://cloud.google.com/shell/) (as of Jun 2018). Verify your `gcloud` installation and configuration:
 

docs/install/minikube-installation-guide.md

@@ -54,7 +54,7 @@ to enable nested virtualization can be found on the
 [KVM Nested Guests page](https://www.linux-kvm.org/page/Nested_Guests)
 
 Alternatively, and for other architectures, the Kata Containers built in
-[`kata-check`](../../src/runtime/README.md#hardware-requirements)
+[`check`](../../src/runtime/README.md#hardware-requirements)
 command can be used *inside Minikube* once Kata has been installed, to check for compatibility.
 
 ## Setting up Minikube

src/runtime/README.md

@@ -65,7 +65,7 @@ The runtime has a built-in command to determine if your host system is capable
 of running and creating a Kata Container:
 
 ```bash
-$ kata-runtime kata-check
+$ kata-runtime check
 ```
 
 > **Note:**
@@ -135,7 +135,7 @@ To see details of your systems runtime environment (including the location of
 the configuration file being used), run:
 
 ```bash
-$ kata-runtime kata-env
+$ kata-runtime env
 ```
 
 ## Logging