How do I eliminate Orphans/Runts on my site (mostly in paragraph) that I am designing?

Site URL: https://bellflower-reed-8eae.squarespace.com/config/design/custom-css

I am trying to figure out how to eliminate Orphan/Runt text for the text portion of my paragraphs.  It drives me crazy seeing one word on a line.  I have looked at some things that people have created with Javascript, but I am not sure how to implement it (jQuery etc.).  Is there an easier way with CSS or similar?  I have been trying to find a solution, but it has me turning to ask the question in this forum.

Hi,

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