chore: update the link of LICENSE-DOCS.md (#5799)

Author: leedom92

README.md

@@ -60,4 +60,4 @@ The documentation is divided into several sections with a different tone and pur
 If you are interested in translating `react.dev`, please see the current translation efforts [here](https://github.com/reactjs/react.dev/issues/4135).
 
 ## License
-Content submitted to [react.dev](https://react.dev/) is CC-BY-4.0 licensed, as found in the [LICENSE-DOCS.md](https://github.com/reactjs/react.dev/blob/master/LICENSE-DOCS.md) file.
+Content submitted to [react.dev](https://react.dev/) is CC-BY-4.0 licensed, as found in the [LICENSE-DOCS.md](https://github.com/reactjs/react.dev/blob/main/LICENSE-DOCS.md) file.