Add documentation for begcomp and endcomp back in
Add documentation for begcomp and endcomp back in

Fixes #1059

liblouis/liblouis,liblouis/liblouis,hammera/liblouis,hammera/liblouis,hammera/liblouis,liblouis/liblouis,BueVest/liblouis,hammera/liblouis,BueVest/liblouis,liblouis/liblouis,hammera/liblouis,liblouis/liblouis,liblouis/liblouis,BueVest/liblouis,BueVest/liblouis,BueVest/liblouis,BueVest/liblouis,hammera/liblouis