✨REFACTORING✨ - it's now a class, and I've standardised things like

using pathlib for all of the files, and moved all of the print
statements to the top level so that it doesn't clutter stdout when
called as a library. Some extra tests.

README.md

@@ -14,19 +14,6 @@ Install [uv](https://docs.astral.sh/uv/), then
 
 ## Usage
 
-To build an SQLite version of a crate:
+    > uv run src/rocrate_tabular/rocrate_tabular.py path/to/crate crate.db 
 
-    > uv run src/rocrate_tabular/rocrate_tabular.py -c path/to/crate -o out.db 
 
-To build a CSV version of the same tables:
-
-    > uv run src/rocrate_tabular/rocrate_tabular.py -c path/to/crate -o out.csv
-
-
-## Todo
-
-Build this out so it's a better library:
-
-- [ ] unit tests
-- [ ] better separation of output formats
-- [ ] build tables for kinds of crate entities with sensible defaults