update readme

Signed-off-by: Lee Briggs <[email protected]>

README.md

@@ -25,7 +25,7 @@ with any of the Users on the tailnet, it has to Tag its nodes.
 Nodes created by this Action are [marked as Ephemeral](https://tailscale.com/s/ephemeral-nodes) to
 be automatically removed by the coordination server a short time after they
 finish their run. The nodes are also [marked Preapproved](https://tailscale.com/kb/1085/auth-keys/)
-on tailnets which use [Device Approval](https://tailscale.com/kb/1099/device-approval/)
+on Tailnets which use [Device Approval](https://tailscale.com/kb/1099/device-approval/)
 
 ## Defining Tailscale version
 
@@ -41,5 +41,17 @@ Which Tailscale version to use can be set like this:
       version: 1.52.0
 ```
 
+If you'd like to specify the latest version, simply set the version as `latest`
+
+```yaml
+  - name: Tailscale
+    uses: tailscale/github-action@v2
+    with:
+      oauth-client-id: ${{ secrets.TS_OAUTH_CLIENT_ID }}
+      oauth-secret: ${{ secrets.TS_OAUTH_SECRET }}
+      tags: tag:ci
+      version: latest
+```
+
 You can find the latest Tailscale stable version number at
 https://pkgs.tailscale.com/stable/#static.