I followed the instruction here https://certbot.eff.org to get a free SSL cert for my website: (pretty cool, huh 🙂 (found it here)
To actually do it, I just go to the website: Scroll down a little, select the software and the system my website is running on, and it will generate all the command-lines for me, here is my link 🙂
There is one small glitch after the installation of ssl cert: that is in the wordpress, I need to set the home page from http to https.
Also, an older post Move WordPress from Share Hosting to DigitalOcean
Yet another post related to this. Btw, I noticed the ssl cert renews automatically.
Earlier: I summarized it on twitter.