Add edit option to root of repo for README.md

[allthedoll]

Feature Description

I think it would be great if Gitea had the ✏️ icon to edit the README.md file from the root of the repository (the Files tab). At present, you must actually click on the README.md file to get the edit option.

I asked about this in Discord.

Screenshots

• Files tab with missing edit option highlighted with red box
  

• Edit option available once you click into the README.md file
  

• Example of edit option being available at root of the repo on GitHub
  

[JakobDev]

This one should be easy to do in just a few minutes. I will create a PR.