Remove stray formatting
Sed script to fix headings

Based on edit-r-based changes made on chapter 1.
Verified using:
git show 0219:./1-SoftReq.txt | ./fixhead.sed | diff - 1-SoftReq.txt
Automatically fix rest of headings

sed -i -f fixhead.sed *-*.txt
Convert latin quotes to guillemots

Using sed -i -f fixquote.sed