Suggestion: Add a cran label

[LluisRamon]

It would be great if you could include some label to differentiate packages that are on CRAN and those that are hosted just in Github.

• Packages submitted to CRAN demonstrates commitment in maintaining properly a package.
• A Github repo could be more like a proof of concept or a project that the owner doesn't really wants maintain too much.

Idea taken from htmlwidgets gallery http://hafen.github.io/htmlwidgetsgallery/

[Emaasit]

That is a great idea. I was not aware of Hafen's htmlwidgets gallery. It makes searching for packages by certain criteria so easy. I going to do something similar for extensions. cc @thomasp85 . Maybe add another tab for "interactive search".

[thomasp85]

Indeed a great idea. I would add that packages on Bioconductor should be featured equally prominent as the requirements for Bioconductor packages are even greater