Adapt README

Author: tkruse

README.md

@@ -3,19 +3,24 @@
 Each time that new code is pushed into your repo, you can have a [cpplint](https://github.com/cpplint/cpplint) command automatically run.
 
 Example workflow:
-* Put the following text into a file named `.github/main.workflow` in your repo):
-```hcl
-workflow "on push" {
-  on = "push"
-  resolves = ["GitHub Action for cpplint"]
-}
-
-action "GitHub Action for cpplint" {
-  uses = "cclauss/GitHub-Action-for-cpplint@master"
-  args = "cpplint --recursive ."
-}
+* Put the following text into a file named `.github/workflows/cpplint.yml` in your repo):
+```yaml
+on: push
+name: on push
+jobs:
+  gitHubActionForCpplint:
+    name: GitHub Action for cpplint
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: GitHub Action for cpplint
+      uses: cpplint/GitHub-Action-for-cpplint@master
+      with:
+        args: cpplint --recursive .
 ```
-Or to add other cpplint options to __args =__ above.
+
+Or to add other cpplint options to "__args =__" above.
+
 ```
 Syntax: cpplint.py [--verbose=#] [--output=emacs|eclipse|vs7|junit]
                    [--filter=-x,+y,...]