Add a FAQ about slowness due to PyTracer
Add a FAQ about slowness due to PyTracer

hugovk/coveragepy,larsbutler/coveragepy,jayhetee/coveragepy,hugovk/coveragepy,nedbat/coveragepy,hugovk/coveragepy,7WebPages/coveragepy,larsbutler/coveragepy,7WebPages/coveragepy,jayhetee/coveragepy,nedbat/coveragepy,jayhetee/coveragepy,blueyed/coveragepy,blueyed/coveragepy,7WebPages/coveragepy,larsbutler/coveragepy,hugovk/coveragepy,hugovk/coveragepy,blueyed/coveragepy,nedbat/coveragepy,jayhetee/coveragepy,jayhetee/coveragepy,larsbutler/coveragepy,nedbat/coveragepy,larsbutler/coveragepy,blueyed/coveragepy,nedbat/coveragepy,blueyed/coveragepy,7WebPages/coveragepy