to turn various kinds of feedback on or off or to determine which
kinds of strips are currently viewed/controlled.
</p>
-<p>Both ,<em>feedback</em> and <em>strip-types</em> use bitsets to keep
+<p>Both <em>feedback</em> and <em>strip-types</em> use bitsets to keep
track what they are doing. Any number in a computer is made out of
bits that are on or off, but we represent them as normal base 10
numbers. Any one bit turned on will add a unique value to the