docstring updates in writers.py
docstring updates in writers.py

thunder-project/thunder,mikarubi/thunder,mikarubi/thunder,pearsonlab/thunder,oliverhuangchao/thunder,kunallillaney/thunder,j-friedrich/thunder,broxtronix/thunder,j-friedrich/thunder,poolio/thunder,jwittenbach/thunder,oliverhuangchao/thunder,pearsonlab/thunder,broxtronix/thunder,kcompher/thunder,zhwa/thunder,poolio/thunder,kcompher/thunder,kunallillaney/thunder,zhwa/thunder