A while back, I tried to open a file that I did not open yet. That's when the "how do you want to open this file?" menu appeared. None of the items in the default list or the extended list served the intended purpose, so I had to browse for the exact application I needed in order to open the file. Unfortunately, along the way, I ended up (accidentally) selecting a "README.html" document and now the document is an option in the menu.
My question is: how do I delete the "README.html" option from the context menu?