Update the TODO list with ideas.

TODO

@@ -1,3 +1,17 @@
-* Images support
-* Create templates for tags/categories
-* Add tests
+* Add a way to support pictures (see how sphinx makes that)
+* Create templates for tags/categories: they're not implemented !
+* Add a way to categorize by paths, and to add dates by filenames. This will
+  allow users to avoid the need of metadatas. I'm thinking about a repository
+  like that:
+      .
+      ├── category1
+      │   ├── 2010-12-15-hello-world.rst
+      │   └── 2010-12-20-my-super-article.rst
+
+  I dont consider the tags as something mandatory, so they will be provided by
+  metadatas whithin the files themselves. That's also important to note that
+  there will be a need to actually change *something* in the files. A better way
+  to work would be to avoid any change if possible (I'm wondering if removing
+  the date is a good option…)
+* Add a way to have multiple feeds (one by category), plus one global, and to
+  send this to the templates.