Explanation for 80 character text width added to writing checklist

BlankProjectTemplate/docs/Writing-Checklist.tex

@@ -48,9 +48,10 @@
     (\verb|$coeff$|) versus $\mathit{coeff}$ (\verb|$\mathit{coeff}$|) versus
     $\text{coeff}$ (\verb|$\text{coeff}$|).
   \item For CAS 741 the instructor would like to be able to add comments to your
-    tex files.  Please be sure to include the Comments.tex file in your repo and
+    tex files.  Please be sure to include the \texttt{Comments.tex} file in your repo and
     in your tex files.
-    \item Text should be 80 characters wide.
+  \item Text lines should be 80 characters wide.  That is, the text has a hard-wrap at
+    80 characters.  This is done to facilitate meaingful diffs between different commits.
   \item Template comments (plt) do not show in the pdf version, either by
     removing them, or by turning them off.
   \item References and labels are used so that maintenance is feasible