Where is this "Share Flow" option - I can't find it 
currently, you have to publish your flow on the flows library then click the share button
I am not certain if we can simply wrap some JSON and have it render.
I think that might come after an NPM module is created - then it could be used as a plugin for discourse.
@joepavitt might know better.
Yeah, as Steve has stated, it's constrained to any flow uploaded to https://flows.nodered.org currently.
I've also just pushed an update to the article to clarify that.
