OK, heard that, but how? Do I make indentations with spaces or tabs? That would be useful info for somebody doing this for the first time as I’m about to.
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You must use spaces 
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once you have the file open using your text editor of choice
Scroll down the file until you find the plugin section (there are a few already in the file)
place your cursor at the end of one of the existing line and hit enter
use space to start the new line exactly where the one above starts
type in the command in exactly the same way as the existing line above
save and close
restart discourse
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(I’ve added a line to the top post to specify indenting with spaces.)
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