fix links to idea/eclipse directories
fix links to idea/eclipse directories

When viewing https://github.com/spotify/heroic, Github renders the links
to `idea` and `eclipse` as links to `https://github.com/spotify/idea`
etc. Fix this by linking to the README instead.

spotify/heroic,spotify/heroic,zfrank/heroic,OdenTech/heroic,lucilecoutouly/heroic,spotify/heroic,lucilecoutouly/heroic,spotify/heroic,lucilecoutouly/heroic