Add writing checklist point about acronyms being defined on their first usage.

BlankProjectTemplate/docs/Writing-Checklist.tex

@@ -84,7 +84,9 @@
   \item All hyperlinks work
   \item Every figure has a caption
   \item Every table has a heading
-
+  \item All acronyms are expanded on their first usage, using capitals to
+    show the source of each letter in the acronym.  Defining the acronym only in
+    a table at the beginning of the document is not enough.
   \end{todolist}
 
 \item Avoid Low Information Content phrases