Yes, you can! See the Video below

1. Navigate to your Shopify Admin Page, then Themes
2. Click on "Customize"
3. Click on "Add Section"
4. Scroll to Advanced layout, Click on "Custom Content", Click on "Add"
5. Give an appropriate heading (ex: Stories). Click on "Add content", then click on "Custom HTML"
6. Copy and Paste the HMTL code here.
7. Remove unwanted default content supplied by the template
8. Go back Section and drag and drop the "Custom content" section to wherever necessary.
9. Click on Save. Now, refresh your Website to see if the Widget is showing.

https://www.youtube.com/watch?v=QRZHDxIc3Cw&feature=emb_imp_woyt