updated todo

TODO.md

@@ -1,13 +1,22 @@
 # TODO
 
 - Fix the relative URL situation in the headers
-  - The link that's defined in header file should be relative to root, not the page being processed.
+  - The link that's defined in header file should be relative to root, not the
+    page being processed.
   - How to handle this?
+- Syntax highlighting for code blocks
+- Implement zola-style directory structure
+  - `templates`, `content`, `static`?
+  - Paths in page metadata should start at these folders
+  - What about markdown links to internal pages?
+  - Steal Zola's syntax?
+    - Link starting with `@` → `content/`
+- Implement zola-style sections with `_index.md`
 
 ## Thoroughly test directory processing
 
 - Is the pagedata being constructed as expected?
 - Is the processmemory struct working as expected?
 
-NOTE: I should really write these as actual tests, not just running tests on my testing directory myself.
-
+NOTE: I should really write these as actual tests, not just running tests on my
+testing directory myself.