Should I start putting every substantial R/Python script I write, even if they are based on some tutorials, on the Github/Personal-Website? Is that how I "show"? I missed the Github bus for all my previous projects.
If you're going to go the coding route, put up a working page, publish a blog entry about it, publish a working app, etc.
The key is to show effort (I spent time on this) and relevancy (I'm solving a problem that you might care about).