Typo fix in README.md

Author: lawther

README.md

@@ -63,7 +63,7 @@ See [CONTRIBUTING.md](CONTRIBUTING.md)
 
 # Credit
 
-The awesome [Invidious API](https://docs.invidious.io/) was previously used, and the server is now using [NewLeaf](https://git.sr.ht/~cadence/NewLeaf) as a to get video info from YouTube.
+The awesome [Invidious API](https://docs.invidious.io/) was previously used, and the server is now using [NewLeaf](https://git.sr.ht/~cadence/NewLeaf) to get video info from YouTube.
 
 Originally forked from [YTSponsorSkip](https://github.com/NDevTK/YTSponsorSkip), but very little code remains.