Update README.md (#26)

README.md

@@ -64,7 +64,7 @@ jobs:
           slackWebhookUrl: 'DISCORD_WEBHOOK_URL'
 ```
 
-Internally, the Action uses [actions/checkout](https://github.com/actions/checkout/) and [stefanzweifel/git-auto-commit-action](stefanzweifel/git-auto-commit-action) to restore and update the feed cache. This allows the Action to remember which item was previously posted and prevents duplicate postings.
+Internally, the Action uses [actions/checkout](https://github.com/actions/checkout/) and basic Git features (committing and pushing changes to the repo it's run on) to restore and update the feed cache. This allows the Action to avoid posting duplicates.
 
 The Action won't post anything if cache is empty (i.e. on first run or when you delete cache from the directory).