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create code fences with backticks ` or tildes ~
```
like so
``` -
add language identifier to highlight code
```python
def function(foo):
print(foo)
``` - put returns between paragraphs
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`like _so_` - quote by placing > at start of line
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scroll-up-line(which is what I use with my scroll wheel) to cause the cursor to move forward one character when it hits the top or bottom of the screen.(setq scroll-preserve-screen-position 'always). Otherwise,C-v M-vdoes not put point back where you started.(The second point position is visible on the first screenful so point doesn't move back.)