Update cancellation-docs (#94)

README.md

@@ -61,7 +61,7 @@ Instead of blindly skipping checks, the backtracking-algorithm will only skip so
 ## Cancel outdated workflow-runs
 
 Typically, workflows should only run for the most recent commit.
-Therefore, when you push changes to a branch, `skip-duplicate-actions` will cancel any previous workflow-runs that run against outdated commits.
+Therefore, when you push changes to a branch, `skip-duplicate-actions` can be configured to cancel any previous workflow-runs that run against outdated commits.
 
 - **Full traceability:** If a workflow-run is cancelled, then you will see a message like `Cancelled <previous_run_URL>`.
 - **Guaranteed execution:** The cancellation-algorithm guarantees that a complete check-set will finish no matter what.
@@ -161,15 +161,6 @@ jobs:
           echo "Do other stuff..."
 ```
 
-### Option 3: Cancellation-only
-
-If you do not care about the skip-features, then you can simply ignore the `should_skip`-output.
-In this case, the integration reduces to the following:
-
-```yml
-  - uses: fkirc/skip-duplicate-actions@master
-```
-
 ## How does it work?
 
 `skip-duplicate-actions` uses the [Workflow Runs API](https://docs.github.com/en/rest/reference/actions#workflow-runs) to query workflow-runs.