If you are working on a laptop then there's a "Publish trip" button on your top right of the screen and if it's a smart phone then click on the "+ icon" on the center bottom of the screen and then "publish trip".
You van Either post a photoblog,that is add a picture that defines your trip and write about it OR you can add an entire itinerary in the Publish Trip section. There you can add multiple photos and describe about each day and it's happenings. I hope that answered your query. Do post something. Will look out for the same!