Many topics here will involve code or terminal commands and output.
If at all possible, such code snippets (bits in line) or code blocks (multiline chunks) should be wrapped in backticks to make formatting more clearly readable. This will help with interpretability and understanding.
In general, code snippets should be placed between single backticks: `something something`. When interpreted and posted, this will end up looking like:
Code blocks would be placed between triple backticks:
When the above is interpreted, it will look like:
Another way to accomplish this is to highlight text and click on the "Preformatted Text" button in the typing/entry interface. That button is in the top row of icons (where the speech bubble and emoji icons are...) and looks like
</>. Highlighting text and clicking on that will lead to approriate ticks being wrapped around it. Or, you can highlight the text and type
Ctrl+E. The Discourse page is almost as multifaceted as the AFNI GUI!
On a final note, it is also much better to copy+paste text, rather than to take photos or screenshots and paste it. Leaving it in text form means it is copy+pastable by people trying to read/check it, and it is also searchable (for error/failure messages, keywords, etc.).