Update README

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

README.md

@@ -94,10 +94,10 @@ Following inputs can be used as `step.with` keys
 
 | Name               | Type    | Default                           | Description                        |
 |--------------------|---------|-----------------------------------|------------------------------------|
-| `version`          | String  | _the one installed on the runner_ | [Buildx](https://github.com/docker/buildx) version. e.g. `v0.3.0`, `latest` |
-| `driver`           | String  | `docker-container`                | Sets the [builder driver](https://github.com/docker/buildx#--driver-driver) to be used. |
-| `driver-opt`       | String  |                                   | Passes additional [driver-specific options](https://github.com/docker/buildx#--driver-opt-options). e.g. `image=moby/buildkit:master` |
-| `buildkitd-flags`  | String  |                                   | [Flags for buildkitd](https://github.com/moby/buildkit/blob/master/docs/buildkitd.toml.md) daemon. |
+| `version`          | String  |                                   | [Buildx](https://github.com/docker/buildx) version. (e.g. `v0.3.0`, `latest`) |
+| `driver`           | String  | `docker-container`                | Sets the [builder driver](https://github.com/docker/buildx#--driver-driver) to be used |
+| `driver-opt`       | String  |                                   | Passes additional [driver-specific options](https://github.com/docker/buildx#--driver-opt-options) |
+| `buildkitd-flags`  | String  |                                   | [Flags for buildkitd](https://github.com/moby/buildkit/blob/master/docs/buildkitd.toml.md) daemon |
 | `install`          | Bool    | `false`                           | Sets up `docker build` command as an alias to `docker buildx` |
 | `use`              | Bool    | `true`                            | Switch to this builder instance |
 
@@ -120,4 +120,4 @@ The following [official docker environment variables](https://docs.docker.com/en
 
 ## Limitation
 
-This action is only available for Linux [virtual environments](https://help.github.com/en/articles/virtual-environments-for-github-actions#supported-virtual-environments-and-hardware-resources).
+This action is only available for Linux [virtual environments](https://docs.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners#supported-virtual-environments-and-hardware-resources).