[Frontend] Repository Page: Broken Repo resources URLs

[josevaldes]

When looking at the URLs that points to the resources of a repository, it seems that the browser interprets anything that is not an external URL into a local path.

For example, if a repo README points to a file such as [my_file](src/my_file), the path for my_file becomes http://localhost:3000/repositories/src/my_file (With localhost:3000 being our app local dev url) when the expected URL should be one pointing into the github domain.

We could prefix either https://github.com or https://raw.githubusercontent.com to the parenthesis that has the relative path. The issue with the raw content page is that it gives a Bad Request error if the pointed resource is a directory instead of a file. Because of it, I'm more inclined to use the github.com domain since that matches the original intend of the README.

[P-Ved]

Hi! I'd love to work on this issue. I've set up the project locally and can start investigating.
Could you please assign this to me?