Did it manually, but wasn't too bad. I first tried to select a few letters of text and then click the icon to make it bold, but I quickly found that It was faster to manually add the asterisks. I hit two asterisks, hit the right arrow about half the letters of the word and hit two more asterisks. Hit ctrl+right arrow to go to the next word and repeated. It only took maybe a minute or so to add in all of the boldings after initially writing out the comment. I now see it would have been faster still to combine the two methods and hover the cursor over the bold button, then shift+arrow to highlight letters, click to make bold, ctrl+arrow to skip to next word, repeat.