Add some TODOs to hacking.md

docs/hacking.md

@@ -150,6 +150,22 @@ freshly built site.
 
 ## Areas for Improvement
 
+### Allow Arbitrary Repo Structure
+
+Currently, *coleslaw* expects all posts to be in the top-level of the
+blog repo. There is no technical reason that coleslaw should care.
+The only change that needs to be made is to the `do-files` macro
+used during content discovery. In particular, it should probably
+use `cl-fad:walk-directory` instead of `cl-fad:list-directory`.
+
+### Allow Tagless or Dateless Content
+
+Several users have expected to be able to not supply tags or a date
+for their content. This is a reasonable expectation and requires
+changes to at least the post templates and the `read-content`
+function. There may be other areas where it was assumed tags/dates
+will always be present.
+
 ### Render Function Cleanup
 
 There are currently 3 render-foo* functions and 3 implementations of the