Have a look at Doug’s post in this thread.
That code will redirect your site to SSL. That will eliminate the “not secure” warning. That’s pretty standard code and has nothing to do with RW. Your host should be able to help you with that, if you have issues.
In order to actually see a secure padlock in the web browser, you’ll also need to make some changes in your RW project and republish. The link below shows mixed-content that is preventing the padlock icon from being shown. Most likely you’ll just need to change your “Web Address” in general settings to: https://weddingphotoct.com. You may also need to make to make the same change to “Website Address” in your publishing settings.
The link below
https://www.whynopadlock.com/results/4a734dfb-1da4-4d38-a1d9-290d2e71f5b3