You’ll find this post in your _posts directory. Go ahead and edit it and re-build the site to see your changes. You can rebuild the site in many different ways, but the most common way is to run jekyll serve --watch, which launches a web server and auto-regenerates your site when a file is updated.

To add new posts, simply add a file in the _posts directory that follows the convention YYYY-MM-DD-name-of-post.ext and includes the necessary front matter. Take a look at the source for this post to get an idea about how it works.

Jekyll also offers powerful support for code snippets:

private void refreshPostList() {
    //this will display a progress spinner control
    setProgressBarIndeterminateVisibility(true);

    ParseQuery<ParseObject> query = ParseQuery.getQuery("Post");
    query.findInBackground(new FindCallback<ParseObject>() {

        @Override
        public void done(List<ParseObject> postList, ParseException e) {
            setProgressBarIndeterminateVisibility(false);
            if (e == null) {
                // If there are results, update the list of posts
                // and notify the adapter
                posts.clear();
                for (ParseObject post : postList) {
                    Note note = new Note(post.getObjectId(), post.getString("title"), post.getString("content"));
                    posts.add(note);
                }
                Log.i(TAG,"refreshPostList: posts=" + posts.toString());
                adapter.notifyDataSetChanged();
            } else {
                Log.d(getClass().getSimpleName(), "Error: " + e.getMessage());
            }
        }
    });
}

Check out the Jekyll docs for more info on how to get the most out of Jekyll. File all bugs/feature requests at Jekyll’s GitHub repo. If you have questions, you can ask them on Jekyll’s dedicated Help repository.