docs: bump actions to latest major

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

README.md

@@ -42,15 +42,15 @@ jobs:
     steps:
       -
         name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         # Add support for more platforms with QEMU (optional)
         # https://github.com/docker/setup-qemu-action
         name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
       -
         name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 ```
 
 ## Configuring your builder
@@ -71,7 +71,7 @@ jobs:
 
 ### inputs
 
-Following inputs can be used as `step.with` keys:
+The following inputs can be used as `step.with` keys:
 
 > `List` type is a newline-delimited string
 > ```yaml
@@ -104,13 +104,13 @@ Following inputs can be used as `step.with` keys:
 
 ### outputs
 
-Following outputs are available
+The following outputs are available:
 
 | Name        | Type   | Description                                         |
-|-------------|--------|-------------------------------------------------|
+|-------------|--------|-----------------------------------------------------|
 | `name`      | String | Builder name                                        |
 | `driver`    | String | Builder driver                                      |
-| `platforms` | String | Builder node platforms (preferred or available) |
+| `platforms` | String | Builder node platforms (preferred and/or available) |
 | `nodes`     | JSON   | Builder [nodes metadata](#nodes-output)             |
 
 ### environment variables