Those are one of the somewhat standard editing symbol for a new paragraph, basically it says the end of a line (when using line wrapping).
Well it's understandable you would be confused as to what those symbols were, considering I'm old and had to see those on papers I handed in back in my school days (preferrably typed, but hand written is okay, not every one owned a typewriter). I'm pretty sure that younger people who only write using computers with auto correct and Grammerly will have never come across such symbols.
see the second to last entry in this chart.
It's a funny looking backwards facing P like symbol.